Single Twin Tube bulb with a 2G11 base</br>Gives a soft white light</br>Estimated life of 11.1 years based on 3 hours use per day</br></br>Product Description</br></br><ul><li>Brand: Philips</li> - <li>Wattage: 24 Watt</li> - <li>Base Type: 2G11</li> - <li>Color Temperature: 3000 Kelvin</li> - <li>CRI: 82</li> - <li>Life Hours: 15,000</li> - <li>Lumens (Initial): 1800</li> - </ul></br><br/>http://www.amazon.com/gp/product/B00113G658