They work fine. I built better lights that are lower powered. I used the CLW lights for 2 years. HLG releases new quantum 120 board for DIY projects. $29
You're in luck. They just posted a new product. They are selling the board with a power supply now and hangers for $99. Good deal. It cost me $65 to source similar parts myself. There's is running 65 watts though and mine is 60 so it should be a brite mofo. HLG 65 3 left.