The Satco 5W Replaces 30Ultra Mini Spiral E12 Candelabra base 4100K fluorescent bulb is a high-quality replacement light bulb that offers bright white light. With a spiral shape and a candelabra base, this bulb provides a unique and efficient lighting solution. Made by Satco, a trusted manufacturer, this fluorescent tube emits a cool and bright light, perfect for a variety of lighting needs in the home or garden.