405nm Blue Violet Beam Laser Pointer Pen Well tested with high quality standard Simply to use - One touch on/off facility, only push the button then you can see striking beam of light shoot forth. The light can point at any targets, such as photos, blackboard, video Monitors, ...etc. Best choice for teachers, professors, doctors, ...etc. Clearly visible at night and makes for a fantastic visual effect Output Type :Fixed focus, continuous output Dimension :13 x 148mm Output power: 1mw-200mw Wave length: 405nm Working Life: over 8000 hours Works with 2 AAA battery
* Working Life: over 8000 hours
* Output wavelength:405nm
* Output power: 1mw-200mw
* Battery: 2XAAA
* Dimension: 13X148mm