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https://en.wikipedia.org/wiki/Lumen
https://en.wikipedia.org/wiki/Luminiferous_aether
HQ ISSUE Tactical LED Flashlight, 650 Lumen – 619382 …
Redline Blast Flashlight LED 1400 Lumen By Nebo – Raney’s …
Duracell 380 Lumen LED Flashlight, 3-pack – Costco
6AA 700-Lumen LED Dual Beam Unbreakable Aluminum Flashlight
US Dollar ($)
