This 600 W Electronic Ballast is supplied as a stand-alone ballast with a flying IEC lead so you can add any reflector fitted with an IEC socket to start growing. The ballast features both dim and boost functions, having the ability to control the light output from the lamp. There are two dimmable options (250w & 400w) and a ‘super-lumens’ boost option (600w+Boost) which is on average an extra 10% increase in output. For best results, always use the correct lamp per wattage setting.