I bought these at amazon LOFTEK Submersible LED Lights with Remote RF(164ft) https://www.amazon.com/dp/B07YBXPBS5/ref=cm_sw_r_cp_api_i_83l2EbJBRWZED

For me they work great lighting up my 16x32 in ground pool. Reviews seem all over the map but for my setup of a vinyl lined pool with steel walls they magnet to the wall very tight. Seems like people who need the suction cups are having different results.

I also tightened them and really cranked them down super hard and added a wrap of loctite go2 clear wrap around the seams as well. No leaking. For $40 I’m pretty happy with them.