The Holosun EPS Carry Green Multi-Reticle Dot Reflex Sight is an enclosed handgun sight designed for narrower, sub-compact guns. The Solar Failsafe™ technology makes sure you always have a backup power source when your battery dies by taking in natural or artificial light to help you sight in, and the Shake Awake™ technology shuts the optic off after 10 minutes of no motions and easily turns back on when shaken to help reduce battery usage. The LED technology with Holosun's Multi-Reticle System offers different intensity settings, ranging from night vision-compatible to daylight bright, and the optic is dustproof and waterproof to remain resilient in the outdoors.