The MR16 3-Watt LED Light bulb features 3 x 1-Watt UV LED rated at 400nm. The bulb uses interchangeable spot lenses to focus the UV light. This bulb consumes approx. 3.5 watts of power and is expected to last up to 50,000 hrs. This bulb is also assembled in our Los Angeles, CA warehouse and includes a 2-year warranty.