sera LED fixture is an overtank luminaire for sera LED X-Cahnge tubes. Due to ist horizontally moveable feet, the sera LED fiXture overtank hood allows using the sera LED X-Change Tubes for all open aquariums with any glass thickness. The luminaire is made of non-corroding aluminum and provides for up to three LED Tubes in line and up to three side to side with each other. The included holder screws and holder loops allow using it as a pendant lamp without any problems (steel wire not included). Includes six clips and a sera LED Triple Cable for connecting up to three LED Tubes.sera LED fixture 800+ overtank luminaire for sera LED X-Change+ allows installing various LED tube length and types+ adjustable feets+ can also be used as hanging lamp+ incl. 6 clips and triple cable+ LED tubes not included+ length: 800 mm, width: 130 mm, heigth: 50 mm+ colors: silver or black