The Crimson Trace Laserguard Pro is a powerful laser sight and LED white light in a single compact unit. Its illumination and targeting product is activated with Crimson Trace's famed Instinctive Activation, which activates the unit with a normal firing grip. The Laserguard Pro offers four modes of operation: laser + light, laser only, light only, and laser + light strobe. The unit features a master on/off switch, is completely user-installed in moments, is adjustable for windage and elevation and offers two (2) hours of battery life. This red laser model is compatible with Glock Gen3 26, 27, 33 and 36, Gen4 26, 27 and 33, and Gen5 26. It also has an 150 lumen light output.