Catalina 19191-000 6-Light LED Adjustable Fixed Track Luminaire Fully adjustable track heads Dimmable from 100% down to 10% Measures 8.5-Inch (H) by 4.7-Inch (W) by 62.8-Inch (L) and 7-pounds Six watt LEDs per individual Track Head - rated at 300 lumens per head - for a combined fixture rating of 1800 lumens; 3000 Kelvin and 80+ CRI. UL Listed and 1-year limited warranty Users need not install light bulbs, as this is an LED product already installed with lighting in the track head.