Tips for buying a 650nm laser pointer

For red laser pointers, 650nm is the most common wavelength. In the power range of 1-200mW, the 650nm/660nm laser pointer is relatively cheap. However, if it exceeds 500mW, the 650nm laser will be expensive. For presentations, we recommend a power of 1-10mW. If you need to burn stuff, a 200mW 650nm/660nm laser pointer with adjustable focus is the most cost-effective choice.

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