Home / Tag Archives: flashlight

Tag Archives: flashlight

Body Heat as Power Source – the Lumen Flashlight

Many of the modern technological inventions/developments are, so to speak, useless, or serve luxurious purposes, and are made without much consideration for their impact on the environment. However, there are exceptions such as the Lumen flashlight, which works without the need of a battery. Therefore it doesn’t threaten the environment …

Read More »