Different versions of Grimlight that has been produced.


The version produced for the Kickstarter campaign. 21 mm in diameter and 2.3 mm high at the thickest point. Running time with LEDs on, about 14h. Assembled PCBs PCB


The populated PCB for the first batch of prototypes assembled by the manufacturer.

Populated PCB

The circuit consists of a microcontroller for individually controlling two LEDs and a battery holder for a 12 mm coin cell battery.


Early prototypes

From oldest to latest. Prototype