**Brand new old stock. **
The SureFire KX1 LED Conversion Head is designed to convert the SureFire E1E incandescent flashlight into a higher-output, dual-output, longer-running LED flashlight. It can also be used to replace the KL1 LED head on older versions of the E1L. The KX1 is fitted with a digital regulation circuit that ensures consistent light output while protecting the LED from current and heat-related damage.