Dali / Triac / 0-10V Dimmable 18W 4ft t8 led light bulbs tube with AC90-265/277V

Dali /Triac /0-10V dimmable 18W 4ft  T8 LED Tube light  with AC90-265/277V input,widely use in commerical or home.
 
Description:
 
Our 4 ft led tubes with single pin  were engineered to quickly and efficiently replace wasteful fluorescent lamps. With superior 110-120lm/w efficiency you can start enjoying years of economical, worry free illumination.
 
Feature:
1. Direct replacement for traditional fluorescent lamp. No need to replace current ballast or rewire.
Reduce installation labor cost
2. Also work directly from 100-277 VAC
3. Health: flicker free and low glare
4. Two end caps: fixed or rotatable for you
5. Two covers: clear (beam angle:120°) or frosted ( beam angle:130°)
6. Warranty: 5 years, Rated Life: 50000hrs
7. Working temperature: -20~40℃.
 
Product Specifications:
 
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FQA:
Q1: What is the Warranty for the tubes? 
A1: For the tubes,we have 5 years warranty.If any quality problems on our side occured in this period ,we will take on the shipping cost and replacement.
Q2: What is colour temperature?
A2: Ervan's LED Lighting offer lamps in warm, natural,pure and cool white with colour temperatures measured in Kelvin (K). The lower the colour temperature is, the warmer the light given by the LED: 
Warm white =  2850-3050k 
Natural white =  3800-4200k 
Pure white =  4700-5250k 
Cool white = 6200-6800k
Q3: What is CRI?
A3: CRI is a figure which feedback the real objects colors.Higher CRI with higher cost.For LED tubes,the CRI is mostly 70-75Ra,and 80Ra with higher cost.
Q4: Why does my LED tube not work properly in extreme temperatures?
A4: Any temperature below 14 F or above 122 F may cause a LED bulb to flicker, dim, change color, or cease to function. Once the LED bulb is returned to an operational environment it should began to work properly.
Q5:Is there cheap shipping cost to import to our country? 
A5: For small order,express will be best.And for bulk order,sea ship way is best but take much time.
For urgent orders,we suggest via air to airport plus our ship partner send to your door.
Q6:Can we get support if we have our own market position? 
A6: Please inform us your detailed mind on your market demand,we will discuss and propose helpful suggestion for you,to find the best solution for you.