Best seller! Ultra Mini Portable fluorescent Black Light in a super light-weight highly directional silver rocket shaped solid state package. Great for thousands of uses. Operates on three button cell batteries-- and two sets of batteries are included! Illuminates Black Light Posters or other Fluorescent objects from across a room. This light is based on a new technology that allows an ultra violet light source to be packed into an ultra small solid state package with amazing power and efficiency. Side mounted switch turns light on with one click and then off with another click. Includes, chain, lanyard, key ring fastener, and belt hook. High Tech at a Low Price. 396 nanometers. Ten pack of replacement batteries for high duty extended light use. If you prefer to order by telephone or by fax, click here for more information. Additional information on blacklight uses. Product Number: ULTRA9800