The Home Surge 615 6-Outlets Surge Suppressor is a sleek device for proper protection of AC line surges - whatever the cause may be. From lightning induced surges and spikes to surges created by utility company line switching or appliances in your home you re equipment will have the barrier necessary to safeguard sensitive components. With 900 joules of surge suppression this surge suppressor is ideal for stereos CD players and other electronics.