Specification: Input voltage:AC100-277 V Output voltage:DC0-40 V Output current:1500m A5% Max. output power:60 W Efficiency (220 Vin) 40V load:87% Power factor (40V Load):100VAC:0.98220VAC:0.95277VAC:0.90 Output specification: Output current:1200-1500m A Open-circuit voltage of the dimming signal:10 V Dimming signal current:1m A Line regulation:5% Load regulation:5% No-load voltage:57 V Output voltage:0-40 V Ripple noise:300m V Start-up time:0.5 S Feature: Active power correction, High PF; Protections:OCP, SCP, OVP; Meets most safety standards for lighting; Built-in 0-10V/10V PWM/RX dimming function; Low ripple & noisy, flicker free; Output current can be regulated by potentiometer. Packageincluded:1x longbright RK314B power supply