Maxibright DigiLight-Pro Variable grow light Ballast's are for the experienced gardener who wishes to have optimum light output management. Managing lamp output at each stage of the growing cycle is important to achieve maximum results.
The DigiLight Pro Variable Digital Ballast gives flexibility in operation of HID lamps with its variable settings:
The 400w unit can run a 400w lamp on four different power settings, 440w super lumen setting or 400w and two dimming settings, 275w and 250w. This unit will also run a 250w lamp at 250w or 275w on the super lumen setting.
**Please note: Metal Halide lamps cannot be dimmed.