Sun System 4 enclosed ballast grow light is a complete lighting system in which the reflector and ballast are integrated in the same housing. Features 95% reflective textured aluminum interior, 6 ft grounded power cord, and white powder coated steel housing. Optional tempered glass lens. 5-year rebuild or replace warranty. Compact 15"L x 9.5"W x 5.7"H size is perfect for orchids, herbs, houseplants and seedstarts. Available in 150W HPS and 175W Metal Halide systems, with medium base bulbs. Made in USA