High Efficiency (up to 93%). Wide Range Universal Input 90-305 VAC. Active Power Factor Correction (0.99 typical). Constant Current Output. Dimming Function. Lightning Protection. Waterproof (IP67). Overcurrent, Overvoltage, Overtemperature Protection. Meets UL8750 & EN61347 Safety. Minimum of 3 Year Warranty, Consult factory for 5 Years.