UVA rays from black lights are well below safety limits and are not hazardous for people who use them, work near them, or have them in their homes. Exposure to black lights is much lower than outdoor exposure to UVA rays.
Black lights
can be a source of UV radiation, but they emit high-wavelength UV light that is less damaging to our eyes. Normal exposure to black light is unlikely to cause major harm to the eyes. However, since UV light can still cause damage, it is recommended to use UV protection when expecting extended exposure to black light.Black lights can also be made with incandescent lights with a black filter to block visible light from the bulb. So what does this mean? Black lights, while a source of UV light, are not as damaging as other UV light sources, such as the sun, solder, or those found in a tanning bed. Excessive exposure to UV light can lead to photokeratitis, or sunburn on the eyes. This differs from other UV light sources (like a tanning bed), which have a wider range and include shorter UV light wavelengths. But how can you protect your eyes from black lights if you're going to have long-term exposure? The best way is to wear glasses that block UV light. Some bulbs, such as incandescent bulbs, will emit a significant amount of infrared light with a very small level of UV light.
Rather than emitting visible white light, the phosphor layer of black lights absorbs UV light and emits a longer form of UV light. In conclusion, it is safe to have a black light in your room as long as you take the necessary precautions. Wearing protective eyewear and limiting your exposure time can help reduce the risk of eye damage from UV radiation. It is also important to remember that black lights are not as dangerous as other sources of UV radiation.