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T8 LED Tube Teeb: Chaw Ua Haujlwm Teeb Pom Kev Txhim Kho Phau Ntawv Qhia - Kev Ua Haujlwm, Kev txuag hluav taws xob & kev teeb tsa

T8 LED Tube Lub teeb: Chaw Ua Haujlwm Teeb Pom Kev Txhim Kho Phau Ntawv Qhia - Kev Ua Haujlwm, Kev txuag hluav taws xob & kev teeb tsa

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Hauv qhov chaw ua haujlwm niaj hnub no, lub teeb pom kev zoo ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov neeg ua haujlwm tsim khoom, pom kev nplij siab, thiab kev siv hluav taws xob. Tau ntau xyoo lawm, T8 fluorescent raj tau ua lub teeb pom kev hauv chaw ua haujlwm, tab sis qhov nce ntawm LED thev naus laus zis tau qhia txogT8 LED tube teebraws li kev xaiv zoo tshaj. Raws li kev lag luam nce qhov tseem ceeb ntawm kev ruaj khov thiab txo nqi, lub zog - txuag T8 LED raj lub teeb thiab dimmable T8 LED raj lub teeb tau dhau los ua - rau cov kev daws teeb meem rau kev kho dua tshiab thiab kev tsim kho tshiab. Tsab ntawv xov xwm no ua raws li EEAT txoj cai, sib koom ua ke cov ntaub ntawv tshawb fawb pov thawj, cov txiaj ntsig sib piv, thiab kev siv tswv yim pom zoo los tshawb txog qhov zoo ntawm kev ua tau zoo, cov txheej txheem xaiv, kev teeb tsa, thiab ntev -lub sij hawm tus nqi ntawm T8 LED raj teeb. Kev txhawb nqa los ntawm cov qauv kev lag luam thiab tiag tiag- cov ntaub ntawv tshawb fawb thoob ntiaj teb, nws muab cov lus qhia ua tau zoo rau cov thawj coj hauv chaw ua haujlwm, cov tswv lag luam, thiab cov neeg tsim khoom sab hauv uas nrhiav kev txhim kho lub teeb pom kev hauv chaw ua haujlwm.

 

Yog vim li casT8 LED Tube Lub teebIb qho kev xaiv zoo dua rau qhov chaw ua haujlwm teeb pom kev zoo dua li cov raj fluorescent?

 

Kev hloov ntawm T8 fluorescent tubes mus rau T8 LED tube teeb yog tsav los ntawm peb qhov zoo: kev ua tau zoo ntawm lub teeb pom kev zoo, kev txuag hluav taws xob tseem ceeb, thiab lub neej ntev dua. Cov txiaj ntsig no ncaj qha hais txog qhov mob tseem ceeb ntawm lub teeb pom kev hauv chaw ua haujlwm- siv lub zog siab, kev saib xyuas tsis tu ncua, thiab qhov teeb pom kev tsis zoo.

 

Superior Teeb pom kev zoo

 

Lub teeb pom kev hauv chaw ua haujlwm yuav tsum muaj qhov sib xws, ci ntsa iab -dawb illumination los txo qhov muag nkees thiab txhim khu kev ua haujlwm raug. T8 LED tube teeb ua haujlwm zoo dua cov raj fluorescent hauv kev ntsuas tseem ceeb xws li teeb pom kev zoo, xim rendering, thiab glare tswj. Kev sib piv kev sim ua los ntawm Chongqing University koom nrog 14 lub chaw ua haujlwm nrog cov txheej txheem zoo ib yam: 4 lub chaw ua haujlwm tau teeb tsa 18W T8 LED raj teeb, thaum 10 siv 32W T8 fluorescent raj. Tom qab 300 teev ntawm kev ua haujlwm, qhov nruab nrab lub teeb pom kev zoo nrog T8 LED raj teeb tau mus txog 239.8 lx-1.21 npaug siab dua li 197.9 lx ua tiav los ntawm cov raj fluorescent. Qhov tseem ceeb, 37.5% ntawm rooj nrogT8 LED tube teebtau raws li lub teb chaws tus qauv illuminance ntau yam (300-500 lx), piv rau 0% nrog fluorescent hlab.

 

Xim rendering Performance index (Ra) yog lwm qhov tseem ceeb rau kev teeb pom kev hauv chaw ua haujlwm, vim tias cov xim luam tawm raug cuam tshuam rau kev nyeem ntawv, tsim kev ua haujlwm, thiab pom kev nplij siab. T8 LED tube teeb feem ntau muaj Ra Ntau dua lossis sib npaug li 80, nrog cov qauv siab -kawg mus txog Ra Ntau dua lossis sib npaug rau 90, ua kom cov ntawv nyeem, duab, thiab cov ntaub ntawv tshwm sim rau lub neej. Nyob rau hauv sib piv, T8 fluorescent hlab feem ntau muaj Ra qhov tseem ceeb ntawm 70-75, ua rau xim distortion thiab nce qhov muag strain. Ntxiv thiab,T8 LED tube teebua kom pom qhov muag me me (UGR Tsawg dua lossis sib npaug li 19) ua tsaug rau cov qauv tsim kho qhov muag xws li frosted diffusers, tsim kom muaj lub teeb pom kev zoo, zoo dua qhov chaw.

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Kev txuag hluav taws xob tseem ceeb

 

Cov chaw ua haujlwm feem ntau ua haujlwm rau 8-12 teev hauv ib hnub, ua kom lub zog siv hluav taws xob yog qhov tseem ceeb tshaj plaws rau kev tswj hwm tus nqi. T8 LED tube teeb muab kev txuag hluav taws xob tshwj xeeb piv rau cov raj fluorescent. Chongqing University xeem tau lees paub tias 18W T8 LED tube teeb siv 43.75% tsawg zog dua 32W T8 fluorescent hlab thaum muab ntau dua illuminance. Rau qhov nruab nrab- chaw ua haujlwm loj nrog 100 lub teeb pom kev zoo, qhov no txhais tau tias kev txuag hluav taws xob txhua xyoo ntawm kwv yees li 5,840 kWh (raws li 8 teev ntawm kev siv txhua hnub thiab $ 0.15 / kWh tus nqi hluav taws xob) - tus nqi txo $ 876 toj xyoo.

 

Lub zog efficiency kom zoo dua yog ntxiv amplified los ntawm lubT8 LED tube teeb lub teebsiab luminous efficiency. Feem ntau T8 LED raj teeb muaj qhov ua tau zoo ntawm 100-150 lm / W, piv rau 60-80 lm / W rau cov raj fluorescent. Qhov no txhais tau tias T8 LED tube teeb tsim ntau lub teeb rau ib watt ntawm hluav taws xob, txo tus naj npawb ntawm fixtures xav tau kom ua tiav qhov xav tau illuminance. Piv txwv li, 18W T8 LED raj lub teeb tuaj yeem hloov lub 32W fluorescent raj thaum xa 20% siab dua ci ntsa iab, tso cai rau cov chaw ua haujlwm kom txo qis lawv cov teeb pom kev zoo yam tsis muaj kev cuam tshuam.

 

Lub neej ntev dua thiab cov nqi kho qis dua

 

Cov raj fluorescent muaj qhov nruab nrab lub neej ntawm 8,000-10,000 teev, yuav tsum tau hloov ntau zaus-tshwj xeeb tshaj yog nyob rau hauv 24/7 chaw ua haujlwm ib puag ncig.T8 LED tube teeb, los ntawm qhov sib piv, muab lub neej ntev ntawm 50,000-100,000 teev (L70B50), txo qhov hloov zaus ntawm 5-10 zaug. Rau ib qho chaw ua haujlwm nrog 100 qhov kev sib tw, qhov no txhais tau tias hloov T8 LED tube teeb tsuas yog ib zaug txhua 17 xyoo (raws li 8 teev ntawm kev siv txhua hnub), piv rau ib zaug txhua 2-3 xyoos rau cov raj fluorescent.

 

Lub neej ncua ntev txhais mus rau kev txuag nyiaj ntau heev. Cov nqi zog rau kev hloov cov raj fluorescent (nrog rau lub sijhawm poob thiab kev tuav cov khoom) tuaj yeem ncav cuag $ 20-30 rau ib qho kev hloov pauv. Rau 100 qhov khoom siv, qhov no yog $ 2,000-3,000 txhua 2-3 xyoos. Nrog T8 LED tube teeb, cov nqi no raug tshem tawm rau ntau tshaj kaum xyoo, ua rau lawv muaj txiaj ntsig zoo rau kev nqis peev mus ntev txawm tias lawv cov nqi pib siab dua.

 

Dab tsi yog Cov Txheej Txheem Xaiv Qhov Tseem Ceeb rau High-QualityT8 LED Tube Teeb?

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Xaiv txoj cai T8 LED raj lub teeb yuav tsum tau ntsuas cov kev qhia tshwj xeeb, kev sib raug zoo nrog cov khoom siv uas twb muaj lawm, thiab daim ntawv thov- cov kev xav tau tshwj xeeb. Hauv qab no yog cov txheej txheem tseem ceeb los txiav txim siab, ua raws li cov qauv kev lag luam thiab cov kev coj ua zoo tshaj plaws hauv engineering.

 

Core Technical Specifications

 

Table 1 sib piv cov txheej txheem tseem ceeb ntawm kev ua haujlwm siab - zooT8 LED tube teebthiab cov tsoos T8 fluorescent raj, qhia txog qhov ua tau zoo ntawm qhov khoob:

Parameter

Siab -Quality T8 LED Tube Teeb

T8 Fluorescent Tube

Qhov zoo ntawm T8 LED Tube Teeb

Lub zog (W)

18-22 (sib npaug rau 32-40W fluorescent)

32-40

43-55% kev txuag hluav taws xob

Luminous Efficiency (lm/W)

100-150

60-80

67% siab dua lub teeb tso zis ib watt

Lifespan (L70B50, teev)

50,000-100,000

8,000-10,000

5-10x ntev lifespan

Xim Rendering Index (Ra)

Ntau dua lossis sib npaug rau 80 (siab-kawg Ntau dua lossis sib npaug rau 90)

70-75

Muaj tseeb xim luam tawm

Glare Index (UGR)

Tsawg dua los yog sib npaug rau 19

22-25

softer, zoo dua lub teeb

Xim kub (K)

3000-6500 (kev xaiv kho tau)

4100 (txuas ntxiv)

Yooj yim rau kev ua haujlwm sib txawv

Cov ntsiab lus Mercury

0

3-5 mg

Ib puag ncig tus phooj ywg

Table 1: Technical Parameter Sib Piv Ntawm T8 LED Tube Lub Teeb thiab Fluorescent Tube

 

Thaum xaiv ibT8 LED tube teeb, ua ntej cov qauv nrog cov lus qhia hauv qab no rau kev siv hauv chaw ua haujlwm:

Lub hwj chim: 18-20W (rau hloov 32W fluorescent raj) kom sib npaug qhov ci thiab txuag hluav taws xob.

Luminous Efficacy: Ntau dua los yog sib npaug rau 120 lm / W kom ntseeg tau tias kev ua haujlwm siab.

Xim Kub: 4000K (tsis nruab nrab dawb) rau cov chaw ua haujlwm dav dav, vim nws sib npaug kev ceeb toom thiab kev nplij siab; 3000K (sov dawb) rau qhov chaw tawg; 5000K (txias dawb) rau kev tsim lossis chaw ua haujlwm.

Xim Rendering: Ra Ntau dua lossis sib npaug li 85 rau kev txhim kho pom kev nplij siab thiab kev ua haujlwm.

Cov ntawv pov thawj: Nrhiav CE, UL, thiab ENERGY STAR cov ntawv pov thawj kom ntseeg tau tias muaj kev nyab xeeb thiab kev ua tau zoo.

 

Compatibility nrog Existure Fixtures

 

Qhov txiaj ntsig tseem ceeb ntawm T8 LED tube teeb yog lawv qhov sib haum nrog feem ntau T8 fluorescent fixtures, txo cov nqi kho dua tshiab. Txawm li cas los xij, ob yam yuav tsum tau xav txog: ballast compatibility thiab fixture hom.

Ballast Compatibility: T8 LED tube teebmuaj nyob rau hauv ob hom: ballast- sib xws (plug-thiab-play) thiab ballast-bypass (direct-wire). Plug-thiab- cov qauv ua si ua haujlwm nrog cov khoom siv hluav taws xob uas twb muaj lawm, tsuas yog yuav tsum tau tshem tawm qhov pib (rau cov khoom qub). Direct-cov qauv hlau yuav tsum tau hla lossis tshem tawm cov ballast, uas yog lub zog ntau dua -ntaus tab sis yuav tsum tau muaj kev tshaj lij. Rau retrofits, ntsaws-thiab-play T8 LED raj teeb pom zoo kom ceev, qis{15}} nqi installation.

Fixture Hom: Daim phiaj sib dhos, cov troffers recessed, thiab nto -mounted fixtures yog txhua yam siv tau nrog T8 LED raj teeb. Xyuas kom lub fixture ntev phim lub raj (1200mm rau tus qauv T8 qauv) thiab cov mounting brackets yog nyob rau hauv zoo mob los txhawb lub lighter luj ntawm LED raj (feem ntau 0.5-0.8kg, piv rau 1.0-1.2kg rau fluorescent hlab).

 

Ntxiv nta rau Office Applications

 

Dimmability: DimmableT8 LED tube teeb(tshaj nrog 0-10V lossis DALI dimmers) tso cai rau qhov ci ntsa iab, zoo tagnrho rau cov chav sib tham, qhib chaw ua haujlwm, thiab thaj chaw uas muaj lub teeb ntuj. Lawv tuaj yeem txo qis kev siv hluav taws xob los ntawm kev ntxiv 10-30% los ntawm kev kho kom haum rau cov teeb pom kev zoo.

Ntse Tswj Compatibility: AdvancedT8 LED tube teebtuaj yeem ua ke nrog cov teeb pom kev zoo ntse, txhawb nqa cov suab sensors, timers, thiab cov chaw taws teeb tswj. Qhov no ua rau muaj nyob hauv- teeb pom kev zoo- tsis siv neeg tua lub teeb hauv thaj chaw tsis muaj chaw nyob - txo qis hluav taws xob ntxiv.

Uniform Illumination: Xaiv T8 LED tube teeb nrog lub kaum sab xis ntawm 120-180℃kom paub meej qhov dav, tsis sib xws, tshem tawm qhov tsaus nti hauv qhov chaw ua haujlwm loj.

 

Yuav ua li cas rau nruab thiab RetrofitT8 LED Tube Teebnyob rau hauv Existing Office Fixtures?

Retrofitting uas twb muaj lawm fluorescent fixtures nrog T8 LED raj teeb yog ib tug ncaj txheej txheem uas yuav ua kom tiav nyob rau hauv peb kauj ruam tseem ceeb. Kev txhim kho kom zoo ua kom pom kev ua haujlwm zoo, kev nyab xeeb, thiab kev sib raug zoo nrog cov tshuab hluav taws xob uas twb muaj lawm.

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Ua ntej-Kev Npaj Kev Txhim Kho

Kev nyab xeeb ua ntej: Tua lub hwj chim rau lub teeb pom kev zoo ntawm lub thawv hluav taws xob thiab xyuas nrog lub ntsuas hluav taws xob kom tsis txhob muaj hluav taws xob txaus ntshai. Tso cov raj fluorescent kom txias tag ua ntej tshem tawm.

Fixture Inspection: Txheeb xyuas qhov kev puas tsuaj, corrosion, lossis xoob xaim. Hloov tej yam faulty Cheebtsam (xws li, tawg sockets, puas reflectors) ua ntej txhim khoT8 LED tube teeb.

Ballast Compatibility Check: Txheeb xyuas hom ballast (electronic lossis magnetic) nyob rau hauv lub fixture. Plug-thiab-ua si T8 LED tube teeb ua haujlwm nrog feem ntau cov hluav taws xob ballasts (tsim tom qab 2000), thaum cov hlau nplaum sib nqus yuav xav tau kev hloov lossis hla.

 

Kauj Ruam -los ntawm - Kauj Ruam Installation

 

Option 1: Plug-thiab-Play Installation (Ballast-CompatibleT8 LED Tube Teeb)

Tshem tawm cov T8 fluorescent tubes uas twb muaj lawm los ntawm kev tig lawv 90℃thiab rub lawv tawm ntawm lub qhov (sockets).

Tshem lub oob khab (yog tias tam sim no) los ntawm lub teeb, vim T8 LED raj teeb tsis tas yuav pib.

Ntxig lub T8 LED raj lub teeb rau hauv lub qhov (socket), xyuas kom muaj kev sib txuas ruaj ntseg. Tig lub raj 90℃kom xauv nws rau hauv qhov chaw.

Tig lub zog thiab ntsuas lub teeb kom pom kev zoo ib yam, tsis muaj flickering, thiab dimming kom zoo (yog tias tsim nyog).

 

Option 2: Ballast-Bypass Installation (Direct-Wire T8 LED Tube Lights)

Tshem cov raj fluorescent thiab disconnect lub fixture ntawm lub hwj chim mov.

Qhib lub hau npog thiab nrhiav lub ballast. Tshem tawm cov kab hluav taws xob los ntawm lub qhov (sockets) thiab cov khoom siv hluav taws xob loj.

Tshem tawm cov ballast los ntawm lub fixture kom txuag tau qhov chaw thiab txo cov cua sov buildup.

Txuas cov hlua hluav taws xob tseem ceeb ncaj qha mus rau lub qhov (socket) (ua raws li cov chaw tsim khoom cov kab kos duab: nyob hlau rau ib qho kawg ntawm lub qhov (socket), nruab nrab xaim mus rau lwm qhov kawg).

Ruaj ntseg lub fixture cover, ntxig rauT8 LED tube teeb, thiab kuaj qhov system.

 

Ncej -Kev txhim kho kom zoo

 

Illuminance Kho: Siv lub teeb ntsuas ntsuas ntsuas lub teeb pom kev pom. Yog tias qib siab dhau lossis qis dhau, kho tus naj npawb ntawm T8 LED lub teeb lub teeb rau ib lub teeb lossis hloov lawv nrog cov qauv ntawm cov wattages sib txawv.

Glare txo: Yog tias muaj qhov ci ntsa iab, teeb tsa los tiv thaiv - glare grids lossis diffuser panels, lossis reposition fixtures kom tsis txhob muaj teeb pom kev ncaj qha rau ntawm lub khoos phis tawj.

Ntse Tswj Kev Sib Koom: Rau kev txuag hluav taws xob ntau tshaj plaws, txuas dimmable T8 LED raj teeb rau cov lus tsa suab sensors lossis nruab hnub nrig sau tshuab, uas tau kho qhov ci ntsa iab raws li cov neeg nyob thiab cov teeb pom kev zoo.

Table 2 piav qhia txog cov kev xav tau ntawm kev teeb tsa thiab kev txiav txim siab rau ntau hom fixture:

Fixture Hom

Txoj Kev Txhim Kho

Cov ntsiab lus tseem ceeb

Grid Fixtures

Plug-thiab-play lossis ballast-bypass

Xyuas kom lub raj ntev qhov sib tw fixture (1200mm txheem)

Recessed Troffers

Ballast -bypass pom zoo

Txheeb xyuas qhov tob qhov tob rau qhov chaw tshem tawm ballast

Nto-Mounted Fixtures

Plug-thiab-ua si

Kev ruaj ntseg thaiv kom tsis txhob muaj kev cuam tshuam ntawm cov qhov (sockets).

Laus Fixtures (Magnetic Ballast)

Ballast hloov lossis bypass

Ncua ib tus kws kho hluav taws xob muaj ntawv tso cai rau kev hloov kho cov kab hluav taws xob

Table 2: Cov Txheej Txheem Txhim Kho rau Cov Khoom Siv Sib Txawv

 

Kev lag luam Common Teeb meem thiab kev daws teeb meem rauT8 LED Tube Lub teeb

 

Tej Teeb Meem

Flickering los yog tsis ua hauj lwm los ntawm kev tsis sib haum ballasts los yog tsis raug xaim.

Tsis sib xws illuminance los yog glare tshwm sim los ntawm kev xaiv fixture tsis zoo los yog installation.

Xim inconsistency hla ntau T8 LED raj teeb los ntawm ntau pawg.

Txo lub neej vim muaj cua sov tsis zoo los yog tsawg- cov khoom zoo.

 

Kev daws teeb meem (200 lo lus)

 

Txhawm rau daws qhov flickering, txheeb xyuas qhov sib xws ntawm ballast - hloov cov khoom sib nqus nrog cov khoom siv hluav taws xob lossis siv ballast- hla T8 LED raj teeb. Xyuas kom cov kev sib txuas ntawm cov xov hlau muaj kev ruaj ntseg thiab ua raws li cov chaw tsim khoom daim duab kos; ntiav ib tus kws tshaj lij rau kev ua haujlwm nyuaj. Rau qhov pom kev tsis sib xws, xaiv T8 LED raj teeb nrog 120-180℃beam kaum sab xis thiab qhov chaw sib npaug (1.5x qab nthab qhov siab sib nrug). Ntxiv cov diffuser panels lossis anti-glare daim phiaj kom txo qis glare. Txhawm rau kom tsis txhob muaj xim tsis sib xws, yuav T8 LED tube teeb los ntawm tib cov khoom tsim tawm thiab xyuas cov xim kub siab (Δu'v' Tsawg dua lossis sib npaug rau 0.004). Txhawm rau kom lub neej ntev dua, xyuas kom cov khoom siv muaj qhov cua txaus (tsis txhob npog cov vents) thiab xaiv cov qauv nrog cov khoom siv hluav taws xob aluminium. Yog tias cov raj kub dhau, hloov nrog tsawg-lub zog, ua haujlwm tau zooT8 LED tube teeb. Kev saib xyuas tsis tu ncua, xws li ntxuav cov khoom siv thiab cov qhov (socket) kom tshem tawm cov plua plav (uas txo cov cua sov dissipation), kuj tseem khaws cia kev ua haujlwm. Ib txwm xaiv cov khoom muaj ntawv pov thawj los xyuas kom zoo thiab ua raws li cov qauv kev nyab xeeb.

 

Cov ntaub ntawv pov thawj

 

Chongqing University. (2012).Qhov sib txawv ntawm cov teeb pom kev zoo ntawm LEDs thiab Fluorescent hauv Chaw Ua Haujlwm. Teeb & Teeb pom kev zoo, 36(1), 38-40.

Ministry of Housing and Urban-Rural Development of the People's Republic of China. (2004).Code for Lighting Design of Buildings (GB 50034-2004). Tuam Tshoj Architecture & Tsev Xovxwm.

ENERGY STAR. (2023).LED Tube Teeb Specification Version 2.1. https://www.energystar.gov/products/lighting_fans/led_lighting/led_tube_lights/specifications

Illuminating Engineering Society (IES). (2022).IES RP-1-22: Pom zoo xyaum ua haujlwm rau teeb pom kev zoo. https://www.ies.org/standards/ies-rp-1-22/

US Department of Energy. (2023).LED Teeb pom kev Technology Fact Sheet. https://www.energy.gov/eere/lighting/led-lighting-technology-fact- ntawv

Teeb pom kev tshawb fawb Center. (2021).Qhov cuam tshuam ntawm Chaw Ua Haujlwm Teeb pom kev zoo ntawm kev tsim khoom thiab kev noj qab haus huv-. https://www.lrc.rpi.edu/programs/officeLighting/

 

Sau ntawv

 

Illuminance (lx): Ib qho kev ntsuas ntawm lub teeb poob ntawm qhov chaw, nrog 300-500 lx pom zoo rau kev ua haujlwm hauv chaw ua haujlwm.

Xim Rendering Index (Ra): Ib qhov ntsuas ntawm 0 txog 100 ntsuas lub teeb lub peev xwm los tsim cov xim kom raug, nrog cov nqi siab dua qhia tau tias kev ua tau zoo dua.

UGR (Unified Glare Rating): Ib qho metric quantifying glare siv, nrog cov nqi tsawg dua los yog sib npaug rau 19 haum rau chaw ua haujlwm ib puag ncig.

L70B50 Lifespan: Tus naj npawb ntawm cov xuab moos tom qab uas 50% ntawm T8 LED raj teeb khaws 70% ntawm lawv qhov pib luminous flux, tus qauv kev ntseeg siab metric.

Δu'v': Ib qho kev ntsuas ntawm cov xim kub sib xws, kom tsis txhob pom cov xim sib txawv ntawm ntau T8 LED raj teeb.

Ballast: Ib qho khoom siv hluav taws xob hauv cov khoom siv fluorescent uas tswj xyuas tam sim no; T8 LED raj teeb yuav xav tau ballast bypass rau kev ua haujlwm zoo.

Koj puas xav kom kuv tsim ibkev cai T8 LED raj lub teeb xaiv checklistrau koj qhov chaw ua haujlwm loj (piv txwv li, 100㎡, 500㎡) lossis tsim acov ncauj lus kom ntxaws tus nqi- tsom xam cov txiaj ntsigMuab piv T8 LED raj teeb thiab fluorescent raj tshaj 5 xyoos?

 

https://www.benweilight.com/lighting-tube-bulb/high-zoo-t8-led.html

Shenzhen Benwei Teeb pom kev zoo Technology Co., Ltd.

Email:bwzm15@benweilighting.com

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