The Reptology Wire Clamp Fixtures feature an ""open air"" design making them the most efficient and safest option available for use with high-heat producing ceramic heat emitters, Constructed of quality materials with heat resistant porcelain sockets, each fixture bears the UL logo, the industry standard for safety, Features an easy to use on/off switch and includes a spring loaded swivel mounting clamp, Recommended for use with Reptology Ceramic Heat Emitters (Item #"s: REPCH1-3), These versatile fixtures can also be used with other types of heat clamps, SKU: EPREPWC