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[2011-6-5]
Why do the Hi-semicon Fixtures use less LEDs than anybody else, yet give the same light output?
[2011-6-5]
How does heat affect the life and output of LED’s? How can one manufacturer's management of heat differ from others?
[2011-6-5]
Where is the Hi-semicon product manufactured?
[2011-6-5]
What is your recommendation for current technology replacement with LEDs?
[2011-6-5]
Questions about fluorescent lamps ?
[2011-5-16]
Questions about Solar LED street light
[2011-5-16]
How to maintain LED street light
[2011-5-16]
Qeustions on LED Solar streetlight
[2011-5-16]
Sales service
[2011-5-16]
Delivery and payment

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