Ensure your 36 watts Lamp UV Bulbs are working to their fullest potential and helping you cure thoroughly and dry efficiently by replacing them every 3,000 hours or 6 to 12 months. For use with the 36 watt UltraViolet Gel Light. Designed for gel & UV topcoat curing. Replacement bulb for most of UV light units of 18, 27, 36, 45 watts / G23-Base. This replacement bulbs is for Magnetic Ballast UV lamp.