This is sealed in the factory pack.

Manufacturer Description:

Upgrade your existing 13W PL fixtures to advanced LED energy-saving technology with the Feit Electric BPPLD13841LEDG2HDRP Double Twin Tube LED Bulb. This 2-pin LED bulb has an output of 800 lumens and a 4000K Cool White light, ideal for general purpose and task lighting. It uses only 6.7 watts of electricity -- up to 48.5% less than equivalent 13-watt fluorescent bulbs. Feit Electric 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 $0.81/year. Choose a dependable, general-purpose light bulb for residential or commercial applications by choosing Feit Electric.

• • PL double twin tube replacement LED bulb GX23-2 base *
• • Estimated annual energy cost of $0.81/year (based on 3 hrs. daily use)
• • Average life span of 22.8 years / 25,000 hours
• • Compact design maximizes illumination in smaller fixtures
• • Energy efficient LED upgrade to fluorescent PL lamps