Yes, in most regions night vision devices are legal for civilian use. However, restrictions may apply to high-end or military-grade models. Always check your local laws before purchasing.

Traditional night vision devices amplify existing light and therefore require at least a minimal level of ambient light. For absolute darkness, thermal imaging devices are a better option.

Consider the device's technology, legal restrictions in your area, your intended application, and compatibility with other gear such as a night vision helmet or night vision light accessories.

In most countries, it is legal to own night vision for civilian use. However, some restrictions may apply to exporting or using certain advanced models. Always check your local regulations before purchasing.

The viewing distance depends on the device's quality and the ambient light available. Entry-level models may have a range of 100-200 yards, while professional-grade devices can reach up to 1000 yards or more in optimal conditions.

Most night vision goggles are designed for nighttime use and can be damaged if exposed to bright light during the day. However, thermal imaging devices and digital night vision models are often safe for daytime use.