Black Light Check Set A Set 1 Set

Make dirt visible! This is an educational kit that makes invisible dirt visible around sinks, doorknobs, toilets, etc. Reacts with vitamin B2, fluorescent agents, flavonoids, etc. Size (mm): 37 x 37 x 140 - Weight(g):180 Peak wavelength: 365nm Light source: Chip type LED Lighting method: UV-LED x 1 Practical lighting time: Approximately 1 hour (normal mode) Lighting pattern: Normal, high mode, low mode Power supply: 3 AAA batteries (included for testing) Set contents: Black light, postcard size mockup sheet x 2 types