http://mdshop.us/2df4yOA The Kessil Gooseneck Mount is compatible with all of the Kessil A series LED lights and is a versatile mounting option that attaches to most any aquarium; glass or acrylic.
The heavy duty, flexible arm measures 24” long. It comes with the necessary hardware to attach directly to the side of your aquarium with a maximum thickness of 1 1/8”. The threaded ends make it easy to attach right on top using the metal bracket included with all of the A series LED lights.
The advantage of a gooseneck is that you can easily position the light at different heights and direct the fixture at different angles. Kessil also offers the 90 degree adapter that fits on the end of the mount to get some additional reach and position the light perfectly over the top of your tank.
KESSIL GOOSENECK TANK MOUNT AND 90° ADAPATER: http://mdshop.us/2df5IJX