• Contains four 10K LEDs • Linkable connection for up to two PowerBrite LED Linking Modules (the Lighting System has a power cord and the Linking Module links to the Lighting System) • Adds the shimmering effect of metal halides without the heat build-up • LEDs last up to 50,000 hours • Includes adhesive docking mounts for use with glass aquarium tops • Includes canopy bracket installation kit • Highly polished conical reflectors • 12.25" L X 1.6" W X .75" H • 4 watts, .4 amps