Lighting suggestion for Frag tank

[jalemboo]

Hello, i want to upgrade to better light for my frag tank chamber in my sump to grow SPS and LPS. Looking for a small LED light (hang or clip) but not sure which one is good and need some help here. The chamber dimension is 22 inch long, 16 inch tall and 10 inch wide. here is the picture, currently using a LED light from my CAD light 8 gallon.