Aquatic Life Marquis Marine Aquarium Light Fixture T5 HO w/2-Lamps & Timer Easily control lighting with the built-in Digital Timer! Electronic ballast built into fixture makes installation easy and anodized matte finish provides visual appeal and years of life Adjustable width aquarium frame mounts safely support fixture above the aquarium German-made specially angled reflectors maximize light by directing it into the aquarium Convenient side location for digital timer control and single power cord makes it easy to mount on the aquarium