Famous Black Light For Detecting Dog Urine References. Brionac 128 leds uv black light. Instead, it will be a bright yellow.
However, feline urine stains are usually picked up at a lower wavelength—between 365 and 385 nm. Wait until dark and then turn off all the lights before trying to see urine with a blacklight. In our opinion and the opinion of many pet lovers, blacklights are an excellent way to find those tricky urine stains.
