6.6ft Ultra-thin track Our track lights are made of high-quality aluminum. The thickness is only 0.23inch, thinner than your mobile phone; the length is 1.64ft*4 (6.6ft in total). With beautiful seam-level lines, the track blends in with the environment, making your space more simple and beautiful Easy installation Unlike others, our ultra-thin track lights adopt a non-built-in design. You don't need to do too much work on your ceiling. It only takes 1 hour to complete the installation. Our track lights allow you to experience the best non-main light design in the most convenient and economical way 3*4000K Floodlights There are 3*4000K magnetic floodlights in our kit.