Constant power drive, constant current output control mode; Class I structure, built-in installation application. Input voltage: 120-277Vac; Protection rating: IP42; Lightning protection rating: 6KV/10KV. Isolation dimming function: Programmable 0-10V/PWM/Time control; Lifespan warning, soft start, light decay compensation; Protection functions: Short circuit, overload, overtemperature, undervoltage protection, etc.