LED SMD Bulbs (C35 G45 Series), are small size LED bulb which is the most popular LED product used in residential or commercial lighting. C37 bulb is known as candle bulb and are wildly use in chandelier or spot lighting fixture lighting. For G45, it I the standard small globe bulb usually used in smaller lighting fixture or lamp strings. LED bulb could use Edison screw base of different sizes. The most common includes E14 and E27 bases. For US market, E12 and E26 are used. If it is Australia and UK markets, bayonet bases such as B15d and B22d are used. Small sizes LED bulb are usually used in home lighting fixture, office ceiling light, they could also be used in advertisement boxes or large makeup mirror for general lighting purpose.