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FAQ 1.How to explain “lumen output ? The total lumens emitted of a light source, system, or solution. 2.What’s efficacy about the light ? The light output of a light source divided by the total electrical power input to that source, expressed in lumens per watt(lm/w).
3.How long is the delivery time ? Samples within 3 working days, bulk order is within 15-20 working days. If you are very urgent, we will try our best to help you. |
| Why choose us? |
Toppo Lighting is one of the leading traditional tube fixture led fluorescent replacement? manufacturers and suppliers in China, which is equipped with a productive factory. Welcome to import the newest traditional tube fixture led fluorescent replacement? at competitive price with us. We can also offer you customized service. |
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