High quality blue violet laser pointers, it's good for presentation. The violet laser is much more beautiful than common green or red lasers. And the violet laser is no harm to human eyes.
Output power : 50mW
Beam Divergence: <1.5mm
Operating Lifetime: 3000-5000hrs
Dimensions: 14mm X 155mm
Batteries: Alkaline AAA x 2 PCS
Operating Current: 150mA
Operating Voltage: 3V
Operating Temp. Range -10 ~ 70
Read more customer reviews below images.