A standard MR16 lamp from Deltech with a GX5.3 base and Ultraviolet light. This 50mm fitting is a direct replacement for a standard 10W halogen lamp at a fraction of the wattage. Made with a durable glass casing this MR16 lamp is suitable for fire rated fittings. Please note LED MR16 lamps require drivers of the appropriate voltage to operate and have limited compatibility with existing halogen transformers.