Aluminum Tube Black or White CREE1507 COB 9W Surface Mounted LED Downlight

1. Sample Policy Service:
   We provide free samples in this way - Refund sample fees when bulk order (500pcs at least),
For example, refund 1 sample fee when ordering 500pcs lamp.

2. Lead time:
  3-7 days for sample, 7-20 days for bulk.

3. After-sales Service:
   Free replacement in warranty period if the quality problems, we will undertake the shipping cost.

4. Payment:
   T/T, Western Union, Paypal, By One Touch Service.

Q:

  Nearly all LED down light are the same exterior, how to tell quality?
A:

  Price and exterior.

  Though LED lighting products are with same or similar exterior, due to raw material cost difference is big, poor quality are all poor heat sink exterior with poor heat dissipation. So prices are also low.

Besides, the driver exterior is also low-end with poor IC, MOS and capacitances.

Q:

  Does LED down light really have 50,000 hours lifespan?
A:

  50,000 or longer lifespan is only theory from lab test. But due to working environments are different from in lab, actual lifespan is only <=30,000hours.

Q:

  For same power, why different suppliers with different brightness?

A:

  Different chips, or same chip but different brightness version. The brightness will be different. But for same chip and same brightness version,the brightness will be slight difference. But please make clear the brightness difference between LEDs and lamp fixture.

For example, 12w LED down light, the LEDs initial brightness is around 1400lm. But the true lamp fixture brightness will lose some due to cover and heat, then will be around 1000lm. But some suppliers write LEDs brightness 1400lm in data sheet to attract clients. Please be careful.