HPR53 Halogen Flashlight Replacement Bulb - Description - 4.0 Volt - 0.85 Amp - T-3 HPR - P13.5S Base - 48 Lumens - C-6 Filament Design - 25 Average Rated Hours - 1.25" Maximum Overall Length - 0.38" Maximum Overall Diameter - Typically found in flashlights using three "D" cell batteries.HPR53 Halogen Flashlight Replacement Bulb