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Spot light a ni
Wallis chuan a rawn ti a
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Wallis 3CCT COB LED track light hi sumdawnna atana hman theih spotlight a ni a, retail store, showroom, gallery, museum, exhibition, shopping mall leh architectural lighting project hrang hranga siam a ni. Tuna model hman mek hian selectable 3000K, 4000K leh 6000K color temperature te a hmang a , 15°–60° adjustable beam hmangin flexible accent leh display lighting a awm bawk.
AC110–240V input neiin -ah a awm a 10W, 20W leh 30W power option , he COB track spotlight hi mounting height hrang hrang, merchandise size leh display environment hrang hrangah configure theih a ni. Aluminium housing hi thermal management pui thei tura siam a nih laiin adjustable optical system hmang hian accent beam tawi tak atanga tuilian zau zawkah luminaire kimchang thlak lovin a inthlak thei a ni.
Lighting distributor, retail fit-out contractor, architect, exhibition company leh OEM lighting brand te tan Wallis hian project-based customization a thlawp a, power, color temperature, housing color, logo leh packaging te pawh a huam tel a ni. Professional lighting design atan chuan lei duhtute chuan CRI, tested lumens, track adapter standard, dimming protocol, driver specification, power factor, flicker requirement, aiming range leh photometric files te pawh a ordered model dik tak atan an confirm tur a ni.
| Specification | Tuna Wallis Information | B2B Project nemnghehna |
|---|---|---|
| Product chi hrang hrang | COB LED Track Spotlight hmanga siam a ni | Track adapter leh installation system te chu confirm rawh |
| Eng Hmuhchhuahna | COB LED hmanga siam a ni | Project specification hmanga control a nih chuan LED brand/bin confirm rawh |
| Thuneihna | 10W / 20W / 30W a ni | Mounting height, target lux leh beam angle a zirin thlang rawh |
| 3CCT hmanga tih a ni | 3000K / 4000K / 6000K a ni | Switch awmna hmun leh CCT hi install hma emaw, install zawh hnu emawa thlan a nih leh nih loh finfiah rawh |
| Beam Angle a ni | 15°–60° a inthlak theih a ni | Continuous zoom mechanism leh photometric distribution te chu nemnghet rawh |
| Input Voltage a ni | AC110–240V a ni | Frequency, driver leh destination-market-a electric mamawh te chu nemnghet rawh |
| Listed Luminous Efficiency a awm bawk | 100 lm/W a ni | Wattage leh CCT tin atan tested delivered lumens dil rawh |
| CRI a ni | Tunah hian tihchhuah a la ni lo | Ra/CRI mamawh chu tarlang la, a bik takin retail, fashion, artwork leh color-sensitive display atan |
| In sakna hmanrua | Aluminium a ni | Finish leh heat-management construction te chu nemnghet rawh |
| Taksa rawng | Var / Dum | Custom finish te chu project confirmation a awm tur a ni |
| Listed Size a ni | 83.5 × 173 mm a ni | 10W / 20W / 30W version tin tan dimensions confirm rawh |
| Installation a ni | Track ah dah a ni | Tuna page hian 'surface mount' image a tarlang bawk a; hei hi alternate version a nih leh nih loh nemnghet rawh |
| Track Compatibility a awm thei | Tunah hian tihchhuah a la ni lo | Order hmain 1-circuit, 3-circuit, H/J/L type emaw project-specific adapter emaw chu confirm hmasa phawt ang che |
| Dimming a ni | Tunah hian tihchhuah a la ni lo | Non-dimmable, TRIAC, 0–10V, DALI emaw driver mamawh dang emaw chu nemnghet rawh |
| Power Factor a ni | Tunah hian tihchhuah a la ni lo | A tulna hmunah commercial project atan PF specification dil tur |
| Flicker a ni | Tunah hian tihchhuah a la ni lo | Retail, exhibition leh video environment-a flicker emaw camera emaw mamawh tur sawifiah |
| Listed Lifetime a ni | darkar 50,000 a ni | A tul hunah lumen-maintenance criterion ang chi rated-life definition dil rawh |
| Tuna IP Claim awm mek | IP65 / IP67 chu tuna page ah hian a awm | Engineering claim anga tihchhuah hmain SKU leh ingress-protection test dik tak chu finfiah hmasa phawt ang che |
| Certification pek chhuah a ni | CE / RoHS / CCC list a awm mek | Model dik tak leh destination market-a hman tur documentation dil rawh |
Engineering note: Commercial track lighting atan chuan specification CRI, delivered lumens, track adapter, driver, power factor, flicker, dimming method leh photometric distribution te hi lighting designer te tan chuan a tlangpuiin 'high brightness.' tih ang chi generic description aiin a tangkai zawk thin.' Heng value te hi final 10W, 20W emaw 30W SKU tan chuan confirm tur a ni.
Installation Configuration a awm bawk
Track Spotlight siam dan tur
3CCT LED track light hian thlan theih correlated color temperature pathum chu luminaire pakhatah a dah khawm a ni. Warm-white, neutral-white leh cool-white fixture hran lei ai chuan installer chuan project commissioning hma emaw, project commissioning neih lai emawa setting awmsa aṭangin CCT mamawh chu a thlang thei a, chu chu product siam dan azirin a ni.
3000K hian hmuhnawm zawk a siam a, hospitality, premium retail, restaurant, residential-style showroom leh display-ah te thlan a ni fo a, chutah chuan boruak nêm zawk duhna hmun a ni.
4000K hian neutral zawka lang a pe a, general retail, furniture display, exhibition leh commercial interior-a balanced white light duh zawkna hmunah a tha fo bawk.
Tuna Wallis specification-ah hian 6000K chu cool-white setting atan a awm. Display concept bik, technical product emaw sumdawnna hmun emaw nena inmil thei tur, hmuh theiha cooler appearance a siam a ni.
3CCT thlan hian distributor leh contractor te tan stock management a ti awlsam thei a, a chhan chu fixture pakhat hian lighting atmosphere hrang hrang a support thei a ni. Buyers te chuan fixture an install hnuah pawh selector an access dan tur chu an la confirm tur a ni.
Tuna Wallis track light hman mek hi 15° atanga 60° vel adjustable beam range hmanga tarlan a ni . Zoomable beam hmang hian fixture pakhat hian fixed optical lens thlak ngai lovin merchandise size hrang hrang leh display layout hrang hrang a ti eng thei a ni.
Narrow beam hian light tam zawk chu hmun tenau zawkah a concentrate a, mimal thil siam, artwork, mannequin emaw architectural details te accenting atan a tangkai hle.
Intermediate beam settings hi shelf, thawmhnaw display, furniture emaw exhibition thil emaw atan hman theih a ni a, chutah chuan hmun tawi tak a awm tam lutuk a, mahse tuilian zau takin a chhehvel hmun tul lo tak tak a ti eng a ni.
Beam zau zawk hian visual area lian zawk a khuh a, general display lighting, product lian zawk leh mounting height hniam zawk a support thei bawk.
Beam angle hian optical system atanga light lo chhuak tur a control thin. Chu beam chu a tumna hmuna fixture rotation leh tilt control. Wallis hian lighting-design drawing atan horizontal rotation leh vertical tilt limits chu a hranin a confirm tur a ni.
| Beam Setting | Lighting Effect | hman dan tlangpui |
|---|---|---|
| 15° vel a ni | Focused accent a ni | Artwork, jewelry, mannequin, mimal thil siam |
| Medium Range a ni | Accent coverage inthlau tak a ni | Retail shelving, furniture, exhibition-a thil phochhuah te a awm bawk |
| 60° thleng a ni | Tuilian zau tak | Display lian tak tak, room zone leh mounting height hniam zawk |
Color rendering hi commercial track lighting atana key purchasing parameter a ni a, a chhan chu shoppers te hian installed light hnuaiah merchandise an evaluate thin a ni. Tuna Wallis page hian CRI value a tichhuak lo a, chuvangin color-sensitive application nei buyers te chuan COB LED description atang chauha performance anga ngaih ai chuan CRI mamawh chu an tarlang tur a ni.
Thawmhnaw dawr te chuan puan rawng, vun rawng leh branded rawng te chu sample tak tak hnuaiah an zirchiang tur a ni. CRI leh a tulna hmunah chuan project specification-ah hian color-rendering metric dang dah belh tur a ni.
Jewelry display te hi color temperature, spectral distribution, glare leh beam control te a sensitive thei a ni. Premium installation atan chuan physical lighting mock-up hi a tha zawk.
Museum leh gallery-ah hian a tlangpuiin controlled color quality, beam distribution leh glare te a ngai thin. Conservation emaw professional exhibition standard hmanna hmunah chuan project designer chuan photometric leh spectral criteria mamawh chu a sawifiah tur a ni.
10W option hi compact display, mounting height hniam zawk leh high-power beam mamawh lohna hmunah illuminated object tenau zawk tan evaluate theih a ni.
20W version hian dawr, showroom leh exhibition application hrang hrang a support thei a ni. Final suitability chu target illuminance leh mounting-height calculation hmangin hriat tur a ni.
30W track spotlight hi hmun zau zawk, ceiling sang zawk emaw, accent contrast chak zawk mamawh product atan emaw ngaihtuah theih a ni.
Wattage hi electrical input a ni a, eng tangkai tak tak tehna direct a ni lo. Lighting designer te chuan 10W, 20W emaw 30W emaw an thlan hmain tested lumens, beam angle, center-beam intensity, mounting distance leh target lux te an khaikhin hmasa tur a ni.
Track compatibility hi commercial track light lei hmaa confirm tur details pawimawh ber pakhat a ni. Track system hi universally interchangeable a ni lo va, tuna Wallis page hian electrical emaw mechanical adapter standard dik tak a hre lo.
Track awmsa thlalak, drawing emaw specification emaw pe rawh. Destination market a zirin project-te chuan single-circuit, multi-circuit emaw proprietary track system dang emaw an hmang thei a ni.
Showroom thar emaw retail project thar atan chuan track rail leh luminaires te chu coordinated system anga lei hian adapter incompatibility a ti tlem a ni.
Wallis specification table hian he product hi track mounted a nih thu a tarlang a, product image awmsa chu 'surface mount installation.' tih a ni thung.
Tuna specification-ah hian AC110–240V tarlan a ni a, hei hian market hrang hranga project hrang hrang atan track light hi ngaihtuah theih a ni. Final product compliance chu driver, frequency, track system leh destination-country mamawh dik takah a la innghat a ni.
Tuna page hian dimming protocol a identify lo. Project-in brightness control a mamawh chuan standard fixture chu dimmable anga ngaih ai chuan quotation laiin TRIAC, 0–10V, DALI emaw control method dang emaw tarlang rawh.
Commercial lighting specification-ah hian power factor tlem ber mamawh a tel fo thin. Wallis hian consultant, tender emaw destination market-in a mamawh hunah driver thlan PF chu a nemnghet tur a ni.
Retail store, exhibition leh showroom-ah te thlalak emaw video-a record emaw a awm fo thin. Low-flicker emaw camera-friendly lighting mamawh lei duhtute chuan driver thlan hmain thil mamawh hman tur chu an sawifiah hmasa tur a ni.
Tuna Wallis track light hman mek hian aluminium housing a hmang a ni. COB LED leh driver atanga heat transfer tha tak hian junction temperature control a pui a, hun kal zelah stable lumen output a support bawk.
LED service life hi thermal condition, driver quality, ambient temperature leh operating hours ah a innghat a ni. Tuna page-ah hian darkar 50,000 vel tarlan a ni a, mahse project specification-ah chuan he figure hi contractual-a pawimawh a nih chuan applicable lifetime emaw lumen-maintenance criterion emaw a awm tur a ni.
Ceiling temperature sang, enclosed channel leh ventilation tha lo hian luminaire temperature a nghawng thei a ni. Project mamawh tak takte tan operating-temperature range phalsak dil rawh.
He product hi retail store, showroom, gallery, museum, exhibition leh indoor commercial application dangte tan a ni ber. Tuna Wallis specification table-ah hian IP65 / IP67 tarlan a ni a, mahse page-ah hian construction details emaw, a kaihhnawih ingress-protection test report emaw a awm lo.
Tuna fixture hman mek hi webpage value awmsa atang chauhvin wet emaw outdoor emaw hmun atan a tha ang tih ring suh. IP65 emaw IP67 emaw a ngai a nih chuan track-light model dik tak, driver leh adapter assembly dik tak documentation dil rawh.
Standard indoor commercial lighting atan chuan CRI, glare, lumens, beam control, dimming, track compatibility leh driver quality te hi ingress-protection rating sang aiin purchasing parameters relevant zawk a ni tlangpui.
Thawmhnaw dawr, kekawr dawr, brand dawr leh shopping center-te chuan adjustable track spot hmangin featured merchandise, mannequin, shelving leh promotional display lam hawia ngaihvenna an thlen thei a ni.
Automotive, furniture, kitchen, building-material leh product showroom-ah te hian display layout an thlak fo thin. Adjustable beam leh CCT thlan hian merchandise position emaw presentation concept emaw a inthlak chuan flexibility a pe a ni.
Zoomable optical system hian artwork hrang hrangah light a concentrate thei a, exhibition object lian zawk tan beam a tizau thei bawk. Professional gallery project atan hian color-quality mamawh chu confirm tur a ni.
Museum-ah hian general retail aiin photometric, spectral leh control performance sang zawk a mamawh thei a ni. Chutiang project atan chuan product thlan hmain consultant-in CRI, CCT, lux, glare, dimming leh beam mamawh te pe hmasa phawt ang che.
Hotel, restaurant leh hospitality interior-ah te chuan boruak atan CCT setting lum zawk an hmang thei a, chutih rualin function hrang hrang atan neutral emaw cooler lighting-a inthlak theihna option chu an vawng reng thei bawk.
Adjustable track spotlight hian fixed recessed spotlight position ngai lovin interior wall, decorative material, column, sculpture leh architectural feature dangte a highlight thei a ni.
Track light hi wattage chauh thlang suh. Merchandise emaw display surface-a lux mamawh tur chu sawifiah la, photometric data hmangin fixture quantity, spacing leh beam settings te chu teh rawh.
Retail accent lighting hian featured merchandise leh a chhehvel ambient light inkara danglamna siamin hna a thawk a ni. Zoom optics hmang hian designer hian lens thlak ngai lovin he contrast hi a siamrem thei a ni.
Track sang zawkah chuan target illuminance vawng reng turin output tam zawk emaw beam control khauh zawk emaw a ngai tlangpui. Installation hniam zawkte chuan hotspot tam lutuk tihtlem nan beam setting zau zawk hmangin hlawkna an hmu thei a ni.
COB source eng tak chuan fixture chu normal viewing position lam hawia dah a nih chuan glare nuam lo tak a siam thei a ni. Beam lam hawi, shielding leh installation angle te chu hmun siam zawh tawhah endik tur a ni.
Professional project tan chuan wattage dik tak leh optical configuration atan photometric data emaw IES file emaw dil la, chutiang chuan luminaire chu lighting-design software-ah evaluate theih a ni.
Tuna standard power option hman mek zingah hian 10W, 20W leh 30W te a awm. Project mamawh dangte chu luminaire size, driver leh thermal design a zirin enfiah theih a ni.
Tuna 3CCT configuration hi 3000K / 4000K / 6000K a ni. CCT mamawh dangte chu LED awm dan leh order quantity a zirin confirm tur a ni.
Tunah hian White leh black list a awm mek a ni. OEM project-te chuan production feasibility a zirin alternative housing finish chungchang an sawiho thei a ni.
Dimming emaw lighting-control integration mamawh project-te chuan sampling hmain protocol chu an tarlang hmasa tur a ni a, chutiang chuan compatible driver chu evaluate theih a ni.
Wallis hian distributor, contractor leh lighting brand te tan customized logo branding leh packaging a support a ni. Volume siam hmain final artwork, labeling leh packaging te chu pawm hmasak phawt tur a ni.
| A rilru a hah lutuk chuan a rilru a buai em em a, a rilru a hah lutuk chuan a rilru a buai em em bawk a. 3CCT | COB LED Track Light | Traditional Halogen Spotlight |
|---|---|---|
| Energy tihdanglamna | LED technology hmang hian lighting efficiency sang zawk a awm thei | Input energy tam zawk hi a tlangpuiin heat-ah a inthlak thin |
| Tuna Wallis Rated Nunna | Page-ah chuan darkar 50,000 a awm a; test definition chu a dik tih finfiah tur a ni | A tlangpuiin lamp thlak fo a ngai thin |
| Color Temperature thlan dan tur | Tuna model hman mek ah hian 3000K / 4000K / 6000K thlan theih a ni | A tlangpuiin lamp chi hrang hranga fix thin |
| Beam Control a ni | Tuna Wallis model-ah 15°–60° a inthlak theih | Reflector/lamp configuration ah a innghat |
| Illuminated Object-ah lumna a awm | LED system hian halogen nena khaikhin chuan radiant heat a tihtlem thei a, fixture design a zirin a ni | Radiant heat sang zawk a awm thei bawk |
| Enkawlna | Integrated LED design hian lamp thlak dan pangngai a ti tlem thei a ni | Lamp thlak hi a tlangpuiin a tam zawk |
B2B project repeat tan chuan approved specification hian electrical, optical, mechanical leh appearance mamawh te a huam tur a ni. Leina specification a zirin inspection-ah hian:
Input power leh voltage a ni
3000K / 4000K / 6000K CCT hmanga thlak theih a ni
Fixture hrang hrang inkara CCT inmilna
CRI awmna hmunah a awm
A tarlanna hmunah lumens a rawn thawn
15°–60° beam siamthat hna thawh a ni
Beam uniformity leh hmuh theih optical defects te
Horizontal leh vertical aiming hmanga kal theihna
Track adapter fit leh electric nena inzawmna nei
Driver hnathawh dan leh a tulna hmunah dimming
Power factor a awm chuan a awm
Flicker performance a awm chuan a awm
Housing dimension leh finish te pawh a awm
Rated condition hnuaiah thermal hmanga hnathawh theih a ni
QC plan inremna angin burn-in emaw aging inspection emaw neih a ni
Electrical leh certification documentation hman tur
Packaging, label leh accessories te pawh a awm bawk
Tuna Wallis FAQ-ah hian pre-production sample pek theih a nih thu a tarlang. Commercial project atan chuan sample approval hian a lan dan chauh ni lovin CCT, beam, housing, adapter, driver leh branding configuration tak tak a huam tur a ni.
CCT leh brightness danglamna chu spotlight tam takin retail wall emaw merchandise display pakhat emaw a tihên chuan hmuh a awlsam phah hle. Chuvangin batch consistency hi repeat-order approval-ah hian a tel tur a ni.
Fixtures te hi fashion retail, furniture showroom, gallery, museum, exhibition, restaurant emaw general commercial lighting atana hman tur a nih leh nih loh sawi rawh.
Ceiling leh track san zawng hian wattage, beam angle leh fixture spacing te nasa takin a nghawng a ni.
Mounting height leh target lux angin preliminary power thlang la, chutah chuan photometric data hmangin verify rawh.
Lighting consultant emaw retail brand emaw mamawh CRI tlem ber pe rawh. Hei hi colour-sensitive merchandise atan tarlan lohvin dah suh.
Track specification pe la, track leh spotlight chu approved system angin lei rawh.
Project chu non-dimmable emaw TRIAC, 0–10V, DALI emaw control system dang emaw a mamawh em tih sawi rawh.
Lighting chhiar zawh nan lumens, beam distribution leh IES data hmang rawh.
Bulk order pawm hmain CCT, beam zoom, glare, brightness, housing finish, adapter fit leh driver behavior te endik hmasa phawt ang che.
Wallis hian distributor, contractor, designer leh commercial brand te tan customized lighting project a thlawp a ni. Track-light order repeat tur chuan wattage, CCT, CRI, beam range, tested output, driver, track adapter, dimming, housing color, certification leh packaging te huam chin specification pawm tawh chu vawng reng ang che.
3CCT tih hian fixture hian color temperature thlan theih pathum a pe tihna a ni. Tuna Wallis track spotlight-ah hian 3000K warm white, 4000K neutral white leh 6000K cool white te tarlan a ni.
Tuna kan product hi 3CCT selectable anga sawi a ni. Hei hi Wallis-a’n electronic tunable-white version chiang taka a nemnghet loh chuan tunable-white lighting chhunzawm zel nen a danglam a ni.
Tuna specification-ah hian adjustable beam 15° atanga 60° vel a awm a, hei hian luminaire chu accent spot tawi tak atanga illumination zau zawk lam pan turin a phalsak a ni.
Page-ah hian adjustable 15°–60° beam a awm a, mahse a lei duhtute chuan model thlan tawha zoom mechanism leh adjustment method dik tak chu an nemnghet tur a ni.
Tuna Wallis specification-ah hian 10W, 20W leh 30W option a awm a.
Tuna product specification-ah hian AC110–240V input a awm. Destination market atan chuan driver leh certification dik tak chu confirm tur a ni.
Tuna Wallis page hian CRI value a tichhuak lo. Buyers te chuan an CRI mamawh chu an tarlang tur a ni a, COB version order dik tak chu confirmation dil tur a ni.
CRI hian light source hnuaia naturally colors a lan dan sawifiah nan a pui thin. Fashion, jewelry, artwork, ei leh in leh branded merchandise te hian color-rendering khauh zawka tih a nih chuan hlawkna an hmu thei a ni.
Page-ah hian 100 lm/W luminous efficiency tarlan a ni a, mahse 10W, 20W leh 30W tan tested delivered lumens chu a hranin a publish lo. Professional lighting calculation atan lumen data tehna dil rawh.
Wattage-times-efficacy chhut awlsam tak hi tested delivered lumens aiah a ni lo. Optical loss, driver performance, CCT leh measurement condition te hian luminaire output siam zawh tawh chu a nghawng thei a ni.
Tuna page hian dimming a tarlang lo. Dimming a ngai a nih chuan quotation laiin control method mamawh chu pe la, chutiang chuan driver configuration chu confirm theih a ni.
DALI hi model thlan bik atana chiang taka nemngheh a nih loh chuan project-specific requirement anga ngaih tur a ni. Technical review atan control specification mamawh chu thehluh tur a ni.
Tuna Wallis page hian track-adapter standard a tarlang lo. Fixture thlak tur order hmain i track system specification emaw physical reference emaw pe hmasa phawt ang che.
Tuna description-ah hian lamp head hi directional lighting atan adjustable a ni tih a sawi. Engineering drawing atan hian horizontal rotation leh vertical tilt angle dik tak chu confirm tur a ni.
Wallis table awmsaah hian IP65 / IP67 tih a awm. Product hi indoor retail leh showroom track light anga dah a nih ber avangin, ingress-protection rating mamawh lei duhtute chuan specification hmain model dik tak atana test information hman tur chu an dil hmasa tur a ni.
Tuna webpage awm mek atang chauh hian pawn lam a remchan dan anga ngaih tur a ni lo. Pawn lama hman hmain IP siam dan dik tak, driver, track system, corrosion mamawh leh environmental rating dik tak chu finfiah hmasa phawt ang che.
Tunah hian white leh black hi standard housing color-ah dah a ni. Finish dang pawh OEM project atan sawiho theih a ni.
Tuna page-ah hian 83.5 × 173 mm a ni. Wattage pathum pek a nih avangin he dimension hi version zawng zawngah emaw, model bik pakhatah emaw a hman theih em tih finfiah rawh.
Tuna specification-ah hian darkar 50,000 vel a awm tih tarlan a ni. Tender emaw engineering emaw hman tur chuan rated-life value nena inzawm definition leh test basis dil tur a ni.
Tuna product table-ah hian CE, RoHS leh CCC te tarlan a ni. Compliance-sensitive buyers te chuan webpage chauh rinchhan ai chuan ordered model leh driver dik tak huamtu document dil tur a ni.
Tuna Wallis information hian power, color temperature, housing color, logo leh packaging te customization a pui a ni. Engineering lama inthlak danglamna dangte chu mimal takin thlirlet tur a ni.
Tuna Wallis FAQ-ah chuan low-MOQ sample testing neih theih a nih thu leh quality checking atan one piece pawm theih a nih thu a tarlang.
Tuna page-ah hian sample atan ni 3–5 vel a awm tih a tarlang. Customized configuration te hian timing hrang hrang a mamawh thei a, confirm leh tur a ni.
Tuna Wallis FAQ-ah hian quantity, customization leh production schedule a zirin kar 1–2 vel a awm tih a sawi. Sample leh specification approval hnuah timing confirm rawh.
Application, mounting height, quantity, 10W/20W/30W mamawh, target CCT, CRI, beam range, track type, input voltage, dimming protocol, housing color, IP mamawh, certification mamawh, logo, packaging leh delivery destination te pek.
rintlak i zawng em ? 3CCT COB LED track light siamtu Retail store, showroom, gallery emaw exhibition project emaw atan Wallis hnenah i wattage, mounting height, CCT, CRI, track system, beam mamawh, dimming method leh quantity te chu technical review, sample testing leh B2B project pricing atan thawn rawh.
