(5)-Pack Replacement Bulb for Heath Zenith SL-5591-A2-A Halogen (5)-Bulbs Replacement Bulb for Heath Zenith SL-5591-A2-A Halogen Will fit with Heath Zenith models SL-5592, SL-5597, SL-5798 and SL-6040 Works with 110 Volt , 120 Volt and 130 Volt as well , Long Life: 2,500 Hours bulb life Usage: Motion-Sensing Twin Security Light , MOTION SECURITY LIGHTING Home Security High Brightness and Energy efficient light bulb / Dimmable Anyray