These are 4' 16.5 watt LED lamps. For direct replacement of a 4' T8 Fluorescent lamp controlled by a electronic ballast. No rewiring needed. Just insert into existing fixture. Average life is 50,000 hours. Cut your electricity usage by almost 1/2
Save big on your electric bill!! Some power companies offer rebates to install these.
Message me on Nextech. Have over 300 quantity. Priced each. Case quantity is 10 to a case.