The beam is so intense that doctors recommend that pointers that use more than 5 mill watts of power should be used with caution. When using Laser Pointers of high power it is recommended that a pair of safety glasses be used.

The difference that lies between the two laser colors is that in the red laser only the dot is visible, but for the green lasers the full beam is visible. The green pointer pen is brighter than the red by about 60 times more. Due to the beam being visible it is easier to point at far off objects.

This 30mw green laser pointer is capable of protecting itself from water and liquids in a depth up to 25 meters. This waterproof green pointer has a powerful and modern microelectronic technology together with a durable and sturdy casing that enables it to perform this feature. This technology works effectively in underwater condition and situation.

This company is a well trusted laser pointer seller and now offering the 30mW 532nm Waterproof Pointer pen (RD-GA) with an affordable purchase price. This waterproof green laser pointer is built with an effective and reliable high technology and hold by a durable casing. This pointer unit is waterproof ready for a depth up to 25 meters. This pointer can provide a good underwater pointing function.

This offer to buy best laser pointer distance is available only in black color. The size of the pointer measures 118mm in length and 26mm in diameter. It is powered by a piece of CR123A battery. This 30mw green laser has 532nm wavelength output and 30mw power output.