Sartek Industries has developed the 4000C and the 4000D handheld flashlights. Depth-tested at 1,000 ft. with 100-lumen output from a single focused 4-watt LED (equivalent to a 15-watt quartz light), the light has 120,000 hours of lamp life. The flashlights are machined from a solid billet of aluminum and come fitted with a , sealed polycarbonate lens. The shockproof flashlights carry a lifetime warranty. The 4000C has a lanyard for easy carrying, while the 4000D has a removable soft-grip handle. Both are equipped with alkaline batteries. The 4000C uses three C cells and has a total burn time of 35-plus hours, while the three D cells that power the 4000D keep it burning for 45-plus hours.Sartek Industries

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