ZX- R 30 

Lightweight and compact body

High power of 400 lumens

Packed with features such as a safe mode that can be used while charging, brightness adjustment, dimming memory that can be stored, and an indicator that shows the remaining battery level at a glance

The red sub-light uses 4 LEDs. This overcomes the weakness of red lights, which is their lack of brightness.

Despite all these features, the device weighs less than 30g. It's so light you'll forget you're wearing it.