LED Versus: Incandescent, Halogen, and Xenon - The Big Bulb Guide - STKR Concepts
File:New torch bulb.jpg - Wikipedia
TRLIFE Maglite LED Conversion Kit, DC4-24V Maglite LED Bulb Replacement for 3-16 C&D Cells Maglite Flashlight, 3W P13.5S Mag Light LED Converter Maglite Replacement Bulbs 12V 18V Flashlight(2 Pack)
SQXBK 10PCS 2.2V0.25A Mini Screw Base Light Bulbs E10 Screw Base Flashlight Bulbs Light Mini Lamps Miniature Screw Base Light Bulbs for Home Experiment Circuit Electrical Test Accessories - Amazon.com
6pcs P13.5S LED Flashlight Torch Lamp Upgrade Light Bulbs 3V White Super Bright | eBay
VILLCASE 50pcs Flashlight Bulb Mini Bulb Big Flashlight Small Light Bulb Mini Light Bulbs Work Flashlights Large Flashlight 120v 5w Light Bulb Round Base Glass Indicator Light E10 - Amazon.com