Good Clip On Lights?

I am planning on putting a Betta fish in a 5 gallon tank. I was looking around for a good clip on light for the tank. It has a rI'm on it so I don't know if there is a clip on light out there that fits on. If there is anyone who knows of a good light let me know.
Thanks

 

This is the one I use.

 

Does it fit on the rI'm pieces of the tank?

 

I

Does it fit on the rI'm pieces of the tank?

It looks like it would but I'm not 100% sure. It's adjustable.

 

K thanks

 

I use this one-



-it has a total of 18 watts of LED light, 6 white, 2 blue. You can have all on, or just blue on. This is bright enough to grow plants in a small tank.

My tank is rimless, but it's adjustable, and can open to just a shade under 1/2".