The battery pack is charged inside the torch via the charging port on the neck of the torch. Lift the dust cover to reveal the charging port and then plug in either the UK mains adaptor to charge via the wall or the USB cable to charge via a computer/laptop or via car with a suitable USB car adaptor (not included). The charging indicator in the switch will go red to show charging is in progress and turn green once charging is complete.

The i18R offers three brightness settings and strobe, which are available in three pre-set selectable modes. The torch is factory set to mode 1, which cycles through in the order of high, mid, low and off with each press. Mode 2 cycles through the settings in the opposite direction of low, mid, high and off. Finally mode 3 cycles through the brightness settings the same as mode 1, except when the torch is on in any mode, you can press and hold the button to activate the strobe setting.

Switching between modes is simple and is done by holding down the button while the torch is off. While holding the button the light will blink once to indicate mode 1 after 10 seconds, blink twice to indicate mode 2 after 13 seconds and blink three times to indicate mode 3 after 16 seconds. Once you have reached the setting you desire, release the button and the light will stay in this mode until you change it again.

The i18R also features a lock out mode to prevent accidental activation when not in use and can be activated the same way as changing modes, except you hold the button for 19 seconds until the light blinks four times. To come out of lock out mode, hold the button for 5 seconds until the light blinks once.