The Varidrive from Maxigrow is the improved version of the Digidrive. It has been upgraded with improved quality components for the same price. This is a great Dimmable Digital Ballast at a bargain price from a reliable manufacturer.
It will run Sodium and Metal Halide lamps and can run at 250w, 400w, 600w or 660w super lumen boost. It has a standard IEC fitting which will fit most shades on the market.