... approved 3 year warranty Long Lifespan 40W LED Driver Power Supply Specification: 1.Certification:CE CCC UL ROHS2. ... Time Between Failure:>20000 hours9. adopt with high efficiency, low power wastage, stabilize PWM chip can reach energy efficiency and pro ... voltage protection, over-current protection, primary, secondary isolated. ensure power supply security As a trustworthy exporter, we can assure you ...