Modern LED technology from UK, packed into an incredibly small, bright, and lightweight helmet light. Equipped with special eLEDs. Approximately twice the light output of the old UK 4AA Xenon, yet with a significantly reduced size and current explosion-proof protection. Electronics maintain a constant light output and ensure a bright beam throughout the entire runtime. The light fits into existing helmet mounts. The light is available with either a rear or front switch. - eLED service life approx. 10,000 hours - rubberized "On/Off" switch, easy to operate even while wearing gloves - 100% waterproof and dustproof - robust ABS housing, electrically conductive, corrosion-resistant - Pressure equalization valve - Simplified battery replacement via special rocker switch - Model: ET rear switch - Color: neon yellow - 1 UK 2AA eLED ET or ES - 2 AA batteries