E27 Lamp Holder is 46mm high by 40mm wide (47mm wide with fixing bracket) (27mm screw). These are particularly suitable in applications where high temperatures may be produced, by high bulb power or by operation in a confined space.
This product would be ideal for applications requiring a compact, heat lamp bulb holder and fixing bracket for low-wattage halogen or LED bulbs, such as in a studio, darkroom, or photography workshop.