● 3-key switch:3 key switch coiled cable stretches from 9.8 in / 25cm to 25.6 in / 65cm
● Provides momentary light / constant on / off
● Memory function: Remember last brightness setting used when turn off
● Pressure switch available in short (7.9 in / 20cm) and long (23.6 in / 60cm) cord lengths
● Compatible with Olight M31 / M3X / M20 / M21 / M20 Crimson