This lamp is also known as a Brewster or Woods Lamp. It incorporates both ultra violet and white light which can be switched between via a switch on the handle. No warm up period is required with this lamp. The housing is made from sheet aluminium which is stove enamelled for durability. The choke is contained within the mains plug which means the lamp is both well balanced and light. This lamp has a large (60 x 80 mm) magnifier area and is useful for showing UV security marks with the white light perfect for inspection tasks.