This Mains Voltage Small Bayonet Cap 100W JD Tungsten Halogen lamp is a direct replacement for a conventional incandescent bulb that saves 20% on energy usage. Offering a crisp white halogen light this lamp lasts 2000 hours twice that of an incandescent bulb. This dimmable compact bulb emits a crisp white light that is ideal for decorative domestic retail and commercial applications where a clean white halogen light is required