The PELI's 1900 series MityLite flashlights feature 2 AAA alkaline cells, hi-intensity Xenon lamp, offering power, bright, yellowish beam. They can cast beams of light through dense smoke, fog or dust. They are submersible (water-resistant), and contain a twist on/off lens shroud. They are a common choice for various applications, from search parties, to busy dusty workshops, construction sites, and smoke-filled areas.