Smith-Victor's all new Heat-Resistant Professional SoftBox Light™ is the ideal continuous light source for still photographers and videographers. Featuring a heavy-duty ceramic mogal lamp socket, the Pro SBQ-1 will handle 500 and 1000-watt quartz halogen lamps with a color temperature of 3200k. The soft boxes have heat vents and are made with a heat resistant silver lining that can withstand high temperatures for long periods of time. The texture of the silver lining allows the SoftBox Light™ to be used as a parabolic reflector by removing the diffusion panel. The stand mounting bracket fits stands with a 5/8 inch stud. The tilting mechanism has an insulated handle and ratchet locking device. The heart of the Professional SoftBox Light™ is the incredible tungsten halogen linear lamp. The design of the linear lamp makes it the ideal soft box light source. The lamp features even illumination throughout the length of the tube, and produces non-directional light distribution with high-intensity and optimum softness. The double envelope construction means that the inner glass tube is protected by an outer shell to help prevent the tube from bursting. When the lamp is cool, you can touch the double envelope with bare hands and never worry about damaging the lamp. Lamp life is approximately 2000 hours.