These Philips blacklight bulbs are in accordance with RoHS guidelines. These have many applications such as banking business, archeology, forensics, detection and analysis in the textile and chemical industries, special effects in night clubs, nail salons, nightclubs and theaters.
The blacklight blue lamps are available in PL-S 9W blacklight / 108 / BLB, fluorescent black light 4W / 108, fluorescent black light 6W / 108 TL blacklight 8W / BLB and 108 in the TL-D versions of the TL-D 18W blacklight / BLB and TL-D 36W blacklight / BLB. So with various fittings and wattages. 
