Q: Nearly all LED tubes are the same exterior,how to tell quality?

A: LED chip brand, the working environment of encapsulation, aluminum profile material and driver.

Usually famous brand LED chip is better like Samsung, Lg, Cree, Epistar and others. For all chip, free dust encapsulation is the best. Besides power, aluminum board thickness and aluminum is rather important as well.

Q: Does LED lights really have 50,000 hours lifespan?

A: 50,000 or longer lifespan is only theory from lab test.But due to working environment are different from in lab,actual lifespan is only <=30,000hours. Meanwhile it can also be 50,000 hours lifespan if it adopt very good material.

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.

Q: What is CRI?

A: CRI is a figure which feedback the real objects colors.Higher CRI with higher cost.

Q: What is PF and efficiency?

A: PF and efficiency is to feedback the driver electrical performance.Higher PF and efficiency with higher cost.

Q: Is there cheap shipping cost to import to our country?

A: 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.

Q: Can we get support if we have our own market position?

A: 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.

For any necessary or help, please feel free to contact us, you will get reply at the first time.