The lightning surge filter protects your connected devices from overvoltage such as thunderneath. Simply plug it into and turn your tap into a tap with lightning surge. Package form: Insert-type slide blister / Maximum surge voltage: 60,000 V; Limit voltage: 600 V; Size (W x H x D): Approx. 1.3 x 1.9 x 1.1 inches (32 x 47 x 28 mm); Weight: Approx. 0.9 oz (25 g); Color: White Material: ABS resin; Country of Origin: China