Is it safe to leave a blacklight on overnight?

Leaving a blacklight on overnight is generally safe, as they typically use fluorescent or LED technology that doesn't produce excessive heat. However, it's still important to ensure that the light is placed in a stable, dry location away from flammable materials. Additionally, prolonged exposure to UV light can be harmful to skin and eyes, so it's best to limit direct exposure. Always follow the manufacturer's guidelines for safe usage.