AquaticLife 20in. Dual-Lamp T5 HO Fluorescent Light fixture for Marine aquariums, offer superior lighting performance, sleek housing and expandability. Internal electronic ballasts and highly polished German made individual reflectors enhance performance. Expandable design includes hardware for connecting up to three fixtures together. Includes one 18watt 10,000K daylight and one 18watt 420/460nm Actinic T5 HO bulb. Frame mounts and installation disc included with each fixture makes installation easy. Optional Suspension Kits are available, allowing the fixture to be suspended above aquarium in any position.