This electronic ballast offers energy savings of up to 25% compared to magnetic models. This model features lamp striation and auto-restrike circuitry and cold-start capacity to -20°F when operating standard 17, 25, or 32W lamps. It's great for when lamp is not switched frequently during normal operation. It also features the UL Type CC rating. The light output ballast factor (BF) is 1.15 to 1.25 BF.