<ul><li>12000 Average rated hours</li><li>18-Watt E27 base</li><li>2700K soft white bulb</li><li>Product Dimension: 4.52\"L x 2.12\"W x 2.12\"H</li></ul><br><br>Fluorescent lamps are phosphorous-coated tubes filled with a low-pressure mercury vapor. Light is produced by passing an electric arc between tungsten cathodes at opposite ends of the tube. This causes the mercury vapor to generate a radiant energy.

Satco S7413 18-Watt E27 Base T2 Mini Spiral, 2700K, 230V, Equivalent to 75-Watt Incandescent Lamp for Enclosed Fixtures