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.