YZYOE Red Flashlight Rechargeable，Green Light Flashlight，Blue Light flashlights，Blood Lights for Observation, 4 in 1 White Lights and Red lamp and Blue Lamp and Green Lamps ，4 Modes.Rechargeable Multi Function Flashlights 4 Color Light White light for night walk or night run, emergency light. Blue light is mild for pilots or someone who read maps at night, Also for Night Vision, Fishing. Green light for noctural wildlife surveys, such as hogs, coyote, Varmint etc Red light for a glow worm walk, light painting, Astronomy. 4 in 1, 4 Modes : White Light and Red Light and Blue Lights and Green Lights You can easily and quickly switch