... Over temperature ·Built in PFC function, PF>0.95 ·Suitable for all kinds of LED lightings, and moving sign applications. ·Built ... work, output current constant, no drift.3. High security, suitable for high humidity, high dust, strong vibration environment of use;Chip ... use life design, normal life in 60,000 hours.6. Pass through the corresponding temperature testing, aging test, efficacy test and short ...