Ballast for fluorescent lamps Dimensions: 26 x 28mm Voltage: 220V, 230V, 240V, 50Hz, 60Hz Wattage: 7-26W Ballast for fluorescent lampsDimensions: 26 x 28mmTW: 130Voltage: 220V, 230V, 240V, 50Hz, 60Hz Wattage: 15W, 18/20W, 22/24W, 26W, 30/32W, 36/40WMaterial: pure copper wire, silicone steel core Loss power loss, no noiseLow temperature rising Ballast