Commercial Chick brooder75w element can come as a lollipop or conical shaped element and emits radiant heat for brooding - no light emitted. This Brooder has ceramics that are of the highest quality available and the commercial socket is UK made high heat tolerant plastic, i.e, not ceramic which chips and breaks. These sockets and elements are used in a commercial environment, such as piggeries. Also read about Brooders and chicken brooding in Brooding Methods