4mw 532nm Green Laser Pen (Star, Heart, Butterfly, Circle, Smiley)
Patterns: Star, Heart, Butterfly, Circle, Smiley. 4mw 532nm Green Beam Laser Stage Pen. Max Output Power: 4mw. 1.1 mm beam diameter at source. Momentary push button switch Material: Aircraft aluminum. Constant wave output (as opposed to pulse output). Power by 2x AAA batteries (not included). Single-point laser range: 20-50m. Can be used to create an atmosphere (disco cool to play, create the atmosphere, KTV, Christmas, Halloween, etc).