PERKO LED SURFACE MOUNT UNDERWATER LIGHT 2-PK. This is a ecnomical way to add transom lights to your boat without drilling big holes, or (you don't have access or room) to mount the thru-hull type. Surface mount, low draw, long life LED's. 12 Volt, 4.5W. Installs easily with three screws (not included). 1-1/4"H x 2-78"D. Color: Blue. Pkg: 2 per pack.