It's easier to see in the dark, and the reflections vary greatly depending on the object being illuminated, so the resulting appearance can be quite different. Also, the brightness should be the same, but the human eye has an interesting feature that the visibility will change with the wavelength = color of the small laser pointer, so it is said to be invisible according to the brightness and distance. A very difficult story. Class IV Visible beam Laser designator Green has high power. Class IV lasers can cause serious eye damage if the beam is directly or reflected into the eye. The diffuse reflection of staring at a laser "spot" on a wall or other surface can also cause eye injury within a few feet of the spot. Do not stare at the laser "spot" when it is nearby.
Always pay attention to the position of the beam to prevent eye exposure. Stay away from people's eyes and heads. Watch out for reflected beams of light from glass and bright surfaces. We recommend using laser protective goggles as described elsewhere on this page. Class IV laser pointer is a kind of high power green laser pointer, the output power is more than 500MW, Class IV laser has many powerful functions, but the price is expensive, lighting cigarettes, matches, blowing balloons, you can even light all combustible things. High power laser beam is very bright, strong anti-stray interference ability, widely used in astronomy, star pointing, field measurement, field exploration, but also astronomy enthusiasts first choice for self-defense. Is a device, outdoor enthusiasts. You will find Class IV laser Pointers to be a lot of fun!