Nightstick Intrinsically Safe Flashlight - LED - 210 Lumens

This flashlight is designed for truly hazardous environments; certified intrinsically safe under multiple standards, meaning it can be used safely in areas where explosive gases or dust may exist. 

Its LED output is rated at 210 lumens, paired with a deep parabolic reflector to throw a focused beam over long distances. The housing is made of a tough engineered polymer that is impact-resistant, chemical-resistant, dust-tight, and waterproof to IP67 standards (so it survives immersion up to about 1 m).

You can control the light with a side-mounted push button that supports both momentary or constant-on modes.

This flashlight runs on three AA batteries (not included), giving up to about 14 hours of runtime at full output. The unit is compact, about 7.0 in long, with a head diameter of ~1.8 in, and weighs ~7.3 oz (≈ 207 g) including batteries.