These inexpensive 0.5W bulbs contain 5 piece of LEDs. The light it emits is rather dim, about 8 lumens. It's comparable to a 4W incandescent bulb. These bulbs are good for night lights or closet illumination where you don't need a lot of light. Using 0.5W, barely detectable to utility meters, you don't even need to turn it off and it lasts many years. There are two type of connectors. This category lists the E12 mini screw Candelabra LED bulbs. We also carry the most common household medium screw E26 bulbs in standard LED bulbs category