This is a continuous variable adjustment quartz halogen light kit for studio use. With a 1000 watt bulb, this light has a large range of adjustment. A built in fan cools the bulb for efficient, safe operation, lengthening the life of the bulb. The overheat protection will work immediately if the temperature inside reaches temperatures greater than 200 degrees F, protecting the fuse, the bulb and the rest of the light's internal systems.This series of lights is specially designed for digital cameras and digital video production. Perfect for lighting your green or blue screen for digital special effects. The softbox diffuses the light, eliminating hot spots, creating a flattering soft light. This type of lighting works great for general portrait photography, product photography and interview or instructional video. Soft lighting illuminates the subject with a flattering wrap around light eliminating hard shadows and overpowering highlights. Your work will have a clarity of light that will accentuate your subject/scene or action. For variety of light you can use the the reflector with or without the barndoor for more dramatic direct lighting effects or accent lighting. This direct or hard lighting will change the tenor of your photography/videography. Your creativity is your only limit with this light. This lighting kit is compatible with all digital and D/V cameras. Compact and easy to transport.Retailing for over $300, we here at JensenBest have negotiated a special price with the manufacturer to bring you this professional quality lighting kit at a substantial savings to you. Great products, good value, smart prices.