These valves are meant to be screwed into pvc. Often used with a linear air piston pump to run an air loop around a room filled with aquariums. Build your own custom gang valve using these. These last a lifetime and are used by most fish stores and fish breeding facilities.
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.
Guppies loved it and I think my puffer will need a few more tries to take to the frozen daphnia, but she’s a diva about all foods until she’s tried them a few times.