Upgrade your existing 13W PL fixtures to advanced LED energy-saving technology with the Feit Electric BPPLD13E841LEDG2HDRP Quad Tube LED Bulb. This 4-pin LED bulb has an output of 600 lumens and a cool 4100K Cool White light, ideal for general purpose and task lighting. It uses only 5 watts of electricity -- up to 61.5% less than equivalent standard fluorescent bulbs. Feit Electric G24Q-1 Quad Tube PL replacements keep cool regardless of atmosphere, giving them an average life span of 25,000/22.8 years. They are RoHS compliant and are 100% mercury free. Installation is easy: no replacement of the ballast or installation of LED driver required. The estimated energy cost is only $0.60/year. Choose a dependable, general-purpose lighting bulb for residential or commercial applications by choosing Feit Electric.