... / 3W,Input 110V-220V,Output power 20Wmax,Fn 50/60Hz LED Dimmers 1W / 3W1.)Input voltage 110V-277V, 50/60Hz2.)Directly ... connected to 1W or 3W LED lights dimming3.)Carry with switch , standard of wiring terminals4.)Accord with national standards ... size is 86×86×55mm5.)Wiring simple, rotating to stepless dimmer, no frequently glisten6.)Product item,7x1W,6Wx1,5Wx1......1x3W,2x3W