600watt Maxibright Digilight Digital Ballast is very reliable and recommended, very well priced and a firm favourite with our customer, Maxibright have an outstanding reputation for quality. The Maxibright Digilight Digital Ballast 600watt has endured rigorous testing before its launch and has proven extremely reliable, safe and quality as standard. Packed in Maxibright sleeves and comes with a 3 year guarentee.