LED Bulbs are the perfect retrofit for your existing light fixtures. We have standard bases, candelabra, standard or Edison (E26) , mogul (E39), MR16 and other typical bases that are common with incandescent and halogen installations. For fluorescent tubes, we have bi-pin, single pin and HO Ends. Also available are PL based bulbs in G23, GX23, G24 and GX24 bases.