How to choose between green and red laser pointers?

If you are looking for a cross or rotating high powered laser, you may have discovered that there are two different laser colors: red and green. In terms of function, lasers are almost indistinguishable from each other. The only difference is the visibility of the eyes. Depending on the ambient light, the green laser is more visible than the red laser. Green looks 6 times brighter than red. This allows them to be used on dark surfaces, greater distances, and when working under very bright ambient light. If you want to use the laser outdoors, you must always have a receiver. In use, you will notice that the green laser is more pronounced than the red, especially in a sunny environment. However, green lasers require more KTP crystals to produce green, which usually makes them more expensive.
On the other hand, red lasers are suitable for home use and are relatively inexpensive. If you don't use laser every day, then this is a good choice. From barcode scanners and laser printers to laser pointers, data discs in supermarkets, laser surgery in hospitals, industrial laser ranging and welding, lasers have long been closely related to daily life and provide many practical services.