A system includes a LLLT device, with a laser diode and a momentary switch, and a clip device configured to attach to the LLLT device and to press the momentary switch while attached, causing the LLLT device to activate the laser diode. A LLLT device includes a laser diode, a front end from which light radiates when the laser diode is activated, and an eye safety mechanism at the front end. The LLLT device is configured to activate the laser diode when the front end is pressed.
