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MUST be directly wired to the 120V AC Power: Disconnect Ballast & Starter if there is any! Installation Manual is attached as the 2nd photo at the left upper corner of this product page! ***DON'T BUY UNLESS YOU UNDERSTAND THIS!***(4-Pack) Instant-On warm white 3000K to replace 120V AC standard 34" F21T5 CFLs
Rotatable: light forwarding angle can be adjusted by +-90 degrees to fit any light fixture!
GREEN ECO FRIENDLY + SIGNIFICANT ENERGY SAVING: no flickering, no UV light, no buzzing ballast, no hazardous materials + Saving ~50% electricity
Lifetime>50,000hrs; 3-Year Warranty