UL Classified for Class I, Division 1. Enables the headlamp to be used in certain hazardous locations. Bright, 1 Watt Super High-Flux Luxeon LED has a 50,000 hour lifetime and never needs replaced.. 90 degree tilting head enables user to direct the light where needed. Longer run time than a traditional Xenon bulb. Easy to use push button switch and 'hands free' operation Streamlight's first safety approved LED headlamp for Class 1, Division 1 hazardous locations! Constructed of ultra light impact and shock-resistant ABS Case with unbreakable polycarbonate lens. Rubber dome-shaped push button actuator provides easy on-off operation even when wearing heavy gloves. 90 degree tilting head is ideal for task targeting. Provides up to 34 Lumens for up to 11 hours of declining output to 25% intensity. UL Classified for Class I, Division 1, Groups A, B, C, D, Temperature Code T4. Includes 2 head straps - rubber and elastic - and 3 AA Alkaline batteries. This headlamp is yellow.