This well built high quality LED light is adjustable in both color temperature and wattage. The selector adjustments are made from the side of the unit on one of the ends that is covered/protected with an access port plug.The color range is from 4500k, 5000k, and 5700k while the wattage range is from 90, 120, and 150 Watts. To my eye it is difficult to see a huge difference between the color ranges although the wattage pull can be metered to be sure.The light is very bright = 22,500 Lumens!!!This is made of aluminum and is light in weight relatively speaking which makes it easy to handle for installation.Comes with hardware, hanger clips, and hanging chains with carabiners along with an instruction manual.One thing, the attached 4 1/2 foot electrical cord is ready to hard-wire into your Junction Box, there is no plug to plug into a socket. You will need a qualified electrician if you are not familiar with the process involved.Impressively powerful and sure to light up any high ceiling large space that you might.