These lamps and their reflectors are cheap and lightweight. Clamps may be purchased which fit on the back of the reflector and enable the light to be hand-held or attached to a post or ledge. The main disadvantage with the cheapest photoflood lamps is that they have a very short life. They are overrun heavily when lit and will burn for nor more than about three hours when switched on continuously. Some of the more expensive photofloods have a longer life.
Any photographic dealer can advise as to the specific cost and running life.
They are the ideal light for titling and photo-copying work. Occasionally one may use photofloods without reflectors in order to produce a more diffuse light. They may also be purchased with inbuilt reflectors which give a highly directional light. Quartz lights Quartz lamps have caused a revolutionary change in lighting for amateurs and professionals and have a great many advantages. They are small, lightweight, silent and extremely powerful.