A Safer Welding Way: Using this welding glasses can greatly protect your eyes from being hurt when you work and improve your work efficiency. Solar power supplys and also with a builtin button battery you dont need to worry about sudden power outages affecting your usage. Wide Applications: This tool can be used for electric welding argon arc welding gases welding cutting and grinding welding operations. Portable Size: The small size of this glasses is very convenient for everyday use you can carry it with you easily. High Sensitivity Probe: With the high sensitivity probes the light changes more faster than before and give you a better using experience.