Features includes:

• One piece lens that focuses and projects up to 90% of light in a uniformly circular beam.
• Aircraft aluminum body with military grade,Type Ⅲ anodized finish and sure-grip texture.
• Compression sealed for water resistance.
• UV12(UV17) emitters bulbS.
• 25,000 hours bulb life.
• Operate 22 hours w/3 AA batteries with normal using Works w/most common fluorescent dyes instant on.No heat.