KPR130 Krypton Flashlight Replacement Bulb - Description - 3.85 Volt - 1.20 Amp - B3-1/2 Krypton Single Contact Miniature Flanged (P13.5S) Base - C-2R Filament Design - 5.20 MSCP. - 20 Average Rated Hours - 1.25" Maximum Overall Length - 0.45" Maximum Overall Diameter. KPR130 Krypton Flashlight Replacement Bulb