Westinghouse Lighting Reflector 23-Watt PAR38 mini-twist E26 medium base compact fluorescent lamp offers 1370-Lumens of bright light output. It has color rendering index of 82. Lamp with 2700K color temperature rating radiates warm white light to the surrounding. It measures 5-1/2-Inch x 4-7/8-Inch x 5-1/2-Inch Dia. Lamp has average life of 8000 hours. Lamp is UL/cULus listed and CSA certified.