200mw green laser pointer material

Currently, there are a wide variety of 1000mW laser pointers on the market, which makes it difficult to find the most cost-effective product. Obtaining a high-quality high powered laser pointer at a reasonable price is the final decision. Laser is harmful to human eyes, please do not irradiate human eyes directly, please keep away from children's memory to avoid accidental injury. Therefore, owners of green laser pointers with green laser beams are particularly good. The power supply voltage is between 3V and 6V. The advantages of these lasers are long service life, simple power supply, small size, and relatively low price. Their output power is 0.5mW to 1W, and the wavelength range is 635nm to 900nm (orange/red to infrared). Their disadvantages are high divergence—points increase rapidly with distance—and large beam diameters (at least 4 mm). Therefore, the blue laser pointer must be much brighter than similar laser pointers, which is why in the case of poor quality, the upper performance limit may become a problem. On the other hand, a good model can guarantee a clear presentation even in direct sunlight. On the other hand, depending on the situation, blue is much less than the bright green or red of most laser pointers.