Specification: Input voltage:AC85-265 V Output voltage:DC27-31V (10W), DC30-34V (20W/30W/50W/70W/100W) Current:10W:150m A is best working 20W:600m A is best working 30W:900m A is best working 50W:1500m A is best working 100W:3000m A is best working Lumen:10W:100lm 20W:200lm 30W:300 Lm 50W:500lm 70W:700lm 100W:1000lm LED type:10W is 3 serial 320W is 2 serial 1030W is 3 serial 1050W is 5 serial 10100W is 10 serial 10 Note: This item is a constant current driver Voltage applied to constant current output Changes in constant output current depend on supply voltage Package included:1*10W/20W/30W/50W/100W led driver