The Element LA-5 PEQ15 Integrated Pointer / Illuminator Module (IPIM) Laser Device runs on a CR123A battery (not included) and is a laser designator as well as a flashlight.
In terms of output modes, it supports low power constant on, high power constant on, low power on/off and high power on/off.
The device has an integrated push switch on its top side and comes with a removable cable switch as well. As it happens, this tiny little module is the smallest PEQ device we have seen so far in Airsoft and attaches via a quick-detach throw-lever for standard 20mm accessory rail attachment.
Disclaimer: Please note this is a toy replica and should not be used for any real law enforcement or tactical use. Use of this device might be regulated or illegal in some countries so please check local laws before ordering.