Klein Tools Intrinsically Safe LED Headlamp A Simple Headlamp Made for Excellence The Klein Tools Intrinsically Safe LED Headlamp is all durability and reliability. This headlamp is compatible with a wide variety of Klein Hard Hats and Safety Helmets by using the Klein accessory mount, allowing you to seamlessly integrate into your favorite gear. This headlamp is specifically designed to be both waterproof and dustproof for improved reliability, allowing you to use it under a variety of tough working conditions without any fear of potential damage. The Klein Tools Intrinsically Safe LED Headlamp features a tilt bracket, allowing you to adjust the angle of your light up to 70° on any compatible hard hat, or up to 90° when detached. It also includes a pressure relief valve on the bottom of the light. For ease of access and use, it includes a singular, large power button on the top of its body. To gain access to the battery compartment, you can use the included 1in Hex Key. To ensure your safety and an overall high quality user experience, this headlamp passes the following standard tests: UL913 7th edition (US and Canada), CSA 22.2 No. 157-92, Reaffirmed 2012, CLASS I, DIV 1 and 2, GRP ABCD; CLASS II, DIV 1 and 2, GRP EFG; CLASS III; TEMP CODE: T4.