PR2 Standard Flashlight PR Replacement Light Bulb - Description - 2.38 Volt - 0.50 Amp - B-3-1/2 Single Contact Miniature Flanged Base (P13.5S) - C-2R Filament Design - 0.80 MSCP. - 15 Average Rated Hours - 1.25" Maximum Overall Length - 0.45" Maximum Overall Diameter - Typically found in flashlights using two "D" cell batteries. PR2 Standard Flashlight PR Replacement Light Bulb