Datei:Black light bulb.jpgDescriptionBlack light bulb.jpg English: A Sanax 15W "black light" compact fluorescent bulb. It emits long-wave (UVA) ultraviolet light at around 365 nm
Datei:Black light fluorescent bulb.jpgthis work, hereby publish it under the following license: English A black light sitting on the floor of a dark room. author name string: Pimplup Wikimedia