Type ( Model ):

F4T5BL, F6T5BL, F8T5BL, F10T8BL, F15T8BL, F20T10BL, F40T10BLSANKYO DENKI UV-A Blacklight Lamps

Like BLB lamps, these lamps emit a highly concentrated radiation between 315nm and 400nm.
There are  two types of phosphor are used with radiation peak at 352nm and 368nm, respectively.
They are used for trapping insects, luring lamps, photosensitization and photochemical reactions.