Nite Ize C/D Cell LED Flashlight Upgrade Kit LRB2-07-PR - The Home Depot
PR6 Standard Flashlight PR Replacement Light Bulb - Genesis Lamp
TEKTITE LPR-2 REPLACEMENT PR BULB LED for 2-cell 3.0V Flashlight MILIT – Draco Products
GE PR6 1w B3.5 (B3 1/2) 2.47v Bulb – BulbAmerica
2pcs P13.5s Pr2 Dc 3v 6v 4.5v 18v 3000k Warm White 2835smd Led Bike Work Light Bulb Torch Headlight Mini Head Lamp Flashlight - Car Headlight Bulbs( led) - AliExpress