Item Code: 48002 Features: * 13W ballast with integral lamp socket. * 6 foot Power cord and wire nuts. * Magnetic Ballast * 120V 60Hz * Ballast dimension: 5.94" x 1.65" x 1.69" (LxWxH) * This ballast kit will fit Marineland Eclipse System 12. * GX23 style base (hellolight's ballast kits have GX23 bases on them). * Will NOT fit "Mini-Mite" Osram bulb type sockets.Warning: To avoid damage to your system, make sure the lamp(s) are seated firmly in their endcap(s). Any lamp not fully pushed into their endcap can result in an ARC, potentially causing damage/failure to your system. If you are not sure how to properly install the lamp, please call us toll free at 866-969-7333 or 866-WOW-REEF. Damage caused by an arc is not covered under warranty. * Caution: This ballast kit must be housed in an area free of moisture, behind glass or acrylic. Make sure the bulb(s) and socket(s) are sealed off from any moisture, humidity or evaporation of your aquarium. Failure to do so will void any and all warranty, and could be a potential hazard.