If you have a close-diameter bright #flashlight (#torch for the UK folk) that you wish was red, you can use a red "#beersaver" silicone lid to cover the end, and boom! Lower light and it's #red now.

#redLight #redFlashlight #redTorch #shtf #prepperTips

Various brands are on Amazon, AliExpress, and probably in a random aisle at some store near you

https://www.amazon.com/LEEFONE-Silicone-Reusable-Brewing-Multi-color/dp/B09DRT7T96