Ideal in applications where high temperatures may be produced. Perfect for you to replace your damaged bulb sockets, restoring old lamps and lights or homemade lighting fixtures. Used for E27 (27mm diameter screw in) lamps Heat lamps, metal halide lamps. Operating at max 250 volts, 60W, with bulb base available in E27. The connection is made using traditional screw terminal blocks to allow for a secure connection.