1. CUASI Battery Installation LIGHTS KNIVES MULTI TOOLS e Turn the end cap in a counter clockwise direction to remove the cap e Remove the battery cartridge e Place three AAA batteries into the cartridge in the direction indicated on the cartridge e Replace the cartridge in the light with the red end going in first e Replace the tail cap and turn it clockwise to tighten it until it is fully closed PX2 5 On Off Operation Battery Installation e The PX25 has a rear switch on the tail cap On Off Operation e To turn on the light press the switch fully until it clicks e To turn off the light press the switch fully until it clicks e The light can also be operated in momentary mode Momentary mode is activated by partially depressing the on off switch less pressure than required for a full click