1, E27 E14 MR16 GU10 GU24 & Customized 2, 1 3 5 6 7 ... , 24v 110v 240v & Customized 4, CE & Rosh 1, Base: E27 E14 MR16 GU10 GU24 & Customized2, Power: 1 3 5 6 7 ... are factory, so we not only offering the stock LED light bulb products,but also offering customized needs.For your Note:we ... our repect.as for base head, generally have the E27, E14, MR16 GU10 GU24 in stock for shipping, however, as manufacture ...