InfiniLED Illuminates for Years

This tiny LED magnet runs for five years on a single coin cell battery.

LEDs are extremely efficient sources of light. They can even be used with a coin cell battery, draining these cells after a few days or weeks. After finding an experiment that explored optimization of perceived brightness versus power consumption, BelgianEngineer came up with the InfiniLED, and now the InfiniLED v2, which can function for much longer.

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