I bought a couple of RGB LED spot lights recently to check the quality. They are 24V and contain three 3W LED (one each red, green & blue). The company I bought them off is Rayled OPTO-Electronics. I dealt with Kevin Wei and his store on AliExpress is here. Kevin was quite helpful, shipped my goods in the time frame indicated. They arrived within a few days of him sending them and were well packed. I've only given them a cursory test so far, but they are quite bright! I did have one connected to a DC48 at the QLD mini and it was running from 12V power supply as that's what I had to hand. I'm happy with them so far, but hope to give them a better test in the next week or two.