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. We carry PL based bulbs in G23, GX23, G24 and GX24 bases.