This Precision Lighting EG2851 vertical screw down CFL socket adheres to the strictest quality control and quality assurance procedures in the ballast and lamp industry. Rated for 10 to 13 watts, this CFL socket is for use with G24q and G24q-1 bases. Each Precision Lighting product is tested under the toughest conditions and meticulously factory checked for defects in materials to reach you in perfect condition.