video
https://3dwarehouse.sketchup.com/model/cf29bfb8-d818-4a86-9715-54d637202a6b/Duracell-LED-flashlight
https://en.wikipedia.org/wiki/Led
https://en.wikipedia.org/wiki/Led_Zeppelin
Duracell 380 Lumen LED Flashlight, 3-pack – Costco
Duracell 1000-Lumen LED Flashlight with Batteries-TC060A00 …