... CCC CE,RoHS,UL approved 2. Imported LED chips 3. 3 years quality warranty LED panel light series Warranty 1. Our company provides free ... Features 1. 90% of the electricity converted into visible light, normal light 80% of electrical energy into heat energy, only 20 ... of electrical energy is converted into visible light 2. Dc drive, no stroboscopic, ordinary light is ac drive, will inevitably produce ...