This is a case of 12 Elive - Elite LED Tube Lighting 30" length. This is strip LED lighting inside a capped glass tube. Light is white - 455 lumens, with spectral RBG distribution to produce high definition color in aquarium tanks or similar. The tubes require an Elive transformer to operate or an equivalent 10V / 1 Amp output class 2 transformer power cord (readily available on ebay). This is for a case of 12 new Elite tubes, each light comes with adapter for mounting(not powering) with existing fluorescent tube lights and mount for stand alone tube. 30" light - 5.5 Wattage, 26 LED, 455 Lumens. Lights on not submersible and are not linkable per manufacturer.