National black light fluorescent lamp. - 20W fluorescent tube - Total length: approx. 57cm - With pull-string switch (ON/OFF by simply pulling) - Plug-in type - Outlet on the main body (can connect other devices) Tested and working. As it is an ultraviolet light, white materials and fluorescent substances will glow. Recommended for interior decoration, displays, collections, experiments, etc. Although it is a used item, there are some minor stains and signs of aging, but there are no problems with the operation. Please check the condition in the photos. Instant purchase is welcome. Black light Fluorescent lamp National 20W Ultraviolet Pull-string switch