RPS Studio RS-4082 2-Umbrella Tungsten Lighting Kit features a high tech design reflectors in this kit a big quality improvement over older style reflectors that have been on the market for years. This new design eliminates concentric circles and hot spots resulting in vastly improved light quality and thus, final picture quality. Additionally, each reflector in this kit is designed with durability in mind.The sockets are ceramic, rated to 660 watt reducing the chance socket failure due to overheating, even with 500 watt bulbs. The on/off switch is in the UL/CSA 2 wire line cord, away from the heat of the socket. The socket is designed to move smoothly forward and backward in the reflector giving the photographer greater artistic control over the light width and edge sharpness.Each reflector bayonet mounts to the ceramic socket for a secure fit There are two 4-section steel light stands in this kit that are black to help prevent reflections and rise to 7 ft. 2" (86") with a 3/8-5/8 spigot with 1/4-20 male thread and feature secure flip locks. Each stand closes to 24" for easy transport. Locks are spring-loaded screw locks ensuring positive locking for each section.Umbrella reflectors have been the most widely used light reflectors for photographic lighting. Their Silver interior reflect soft natural light on your subject. The Black exterior keeps light from escaping a reflects more on to your subject. They are economical, compact and produce good light quality with even illumination. RPS Studio octagonal umbrellas can be used with either electronic or tungsten lights as they are heat resistant and can be used for bounce light up to 1000 watts. All feature quality frames. It also includes travel and storage box.