I've been using a Platinum LED P4-XML2 for a little over a month now. This is my first grow, but the results are pretty impressive. What I like most about the light is there are 3 different settings that can be used, or any combination. Supposedly this light is capable of replacing a 600W ballast set up, while running at only 380W.
When I just began, for seedlings/early veg I had purchased a GalaxyHydro 300w equivalent LED light. My initial impressions were that it was small, and there was no way I could supply enough light to my full grown plants with it, especially through flowering! I did some rigorous research and considered Kind LED lights, and others, however Platinum LED stood out to me because of the build quality, cool design, and their switches which allowed for three different light settings.
I love this light. It supplies a tremendous amount of light to the plants, and the plants love it! I have had it on the high setting for a little over a month for the final stage of vegetative, and am very pleased with the results. The light is quiet, runs cool (has 4 fans inside of light), and has some excellent build quality.
Lastly, when I had trouble with rattling in one of the fans I just called up the company and they sent me a new fan. I was able to replace the rattling fan (bearings were bad) and it has been running like a champ ever since!
Check out my grow with it, and the manufacturers website:
https://platinumgrowlights.com/products/p4-xml2