The Maxibright iPac ballast range from UK manufacturer Maxigrow, builds on the success of the Maxibright Mk3 with new features. Maxigrow have redesigned the powder coated housing so as its narrower and more compact than its predecessor, but with better than ever ventilation. It still features the 'tried & tested' Venture control gear and that together with the new SMART ignitor, makes this the best magnetic HID power pack they've ever developed ! As reliable as the Compact with the bonus of an extended guarantee