ReefLED individual mounting arms attach firmly onto the read wall of the tank and can be rotated in the upright position during reescaping or other tank maintenance. Available in 3 models that are suitable for tank widths from 18¼"-27½”" with glass thickness for 5/16"-3/4".
I purchased 2 of these lights to go on a 40 long tank and I like the look of the lights sitting above overhead the tank.
Of course they have 2 settings one which is a soft blue for evening.
The quality and price have pleased me too.