The RM400LSR is a rechargeable light and laser combo designed specifically for rail-mount equipped firearms. The RM400LSR features up to 500 yards of beam throw w/green and 400 yards w/red; built in halo shield, and adjustable focus with the ability to easily switch out the color LED bulb (green/red/white) modules for changing the beam color on your Predator Light. The kit includes a rail mount, intensity control on/off remote switch, two 18650 rechargeable li-ion batteries, charger, battery extension tube, plastic case and LED bulb modules.