4PCS Leader Lead E27 SMD 4W 320LM Cold White 6000K Light Bulb LED Corn Light Bulb (110V) 4pcs 4W cold white corn lights. Stadard E27 screw base, easy intall and fast replacement. With small volume and will not be damaged easily,and is widely used. Perfect for home lighting,office lighting,exhibtion lighting and decoration lighting. Lifespan is up to 50000 hours.