Side markers give you more safety at dusk and in the dark. LEDs make vehicle visible from far away, even from the side thanks to conspicuous night design. Heavy-duty LED's have a longer service life than conventional bulbs (more than 100,000 hours). LED's consume a minimum of energy. (0.7watt).Set of 4 comes complete with cabling, connectors and installation instructions. Light emitted is amber, regardless of lens color. Dimesions: 1 1/4" high, 1" deep at the highest point, 2 3/8" wide.