... customers 3. Free samples promptly provided4. Export carton package5. delivery to customers on time6. Signal transmissiom smooth,2 years ... irradiation of a place5.Soft lightingLight source--led, it's green and environmentally, soft lighting, no RF interference, ... beauty, elegant appearance 3. Health protection, low pressure constant current drive 4. LED Panel Light use high quality lighting resouce 5. ...