The Paterson Darkroom Safelight complete with its Red Dome can be safely used with all current types of silver based darkroom printing papers. It is also safe for dental X-Ray film. In use the safelight can be hung on a wall or suspended from the ceiling. It is supplied complete with a 15 watt lamp and a mains lead and plug. The safelight should be positioned a least a metre away from the working area. In the case of larger darkrooms more than one safelight may be required.