streamlight flashlight battery 75175 3.6V 2200mAh Ni-MH Rechargeable Batteries Compatible with Stinger Parts XT,DS, LED HP, 75175/75375, FL126,PolyStinger, Pelican M9 (1 Pack x 75175 rechargeable battery) : Tools & Home Improvement ASSEMBLY:With Pro Build & Tune (+$299) Unique Bargains Sling Backpacks MIPS-equipped helmet PolyStinger LED and PolyStinger

streamlight flashlight battery 75175 3.6V 2200mAh Ni-MH Rechargeable Batteries Compatible with Stinger Parts XT,DS, LED HP, 75175/75375, FL126,PolyStinger, Pelican M9 (1 Pack x 75175 rechargeable battery) : Tools & Home Improvement ASSEMBLY:With Pro Build & Tune (+$299) Unique Bargains Sling Backpacks MIPS-equipped helmet PolyStinger LED and PolyStinger

Unique Bargains Sling Backpacks for Men Women Crossbody Bags Casual Sling Shoulder Chest Bag for Outdoor Travel Gray s26032500ux3643 - Best Buy

The bulbs for most retro lights will either be an E10 MES, or a PR13.5, there`s plenty of different LED dropins for those, you can even use maglite LED dropins for the PR type socket, personally I prefer multi-emitter dropins for these lights, you get more light with less heat (losing heat is big problem with these lights).for the battery you have to do a bit of DIY, it`ll involve cutting a suitable cardboard tube to fit either a protected 18650 or 21700 (you must use protected cells!), and then a way to make a spacer so it`s long enough to connect at both ends

MIPS-equipped helmet

ASSEMBLY:With Pro Build & Tune (+$299)

Insulates without adding bulk

PolyStinger LED and PolyStinger DS LED flashlights