T4 G24D-3 Twin Tube 2-Pin Compact Fluorescent Lamp. 26 Watt, 3500K color temperature, 82CRI. 1800 initial/1500 mean lumens. 2-Pin lamps are for use with magnetic ballasts. Minimum starting temperature 14 degrees fahrenheit. Idea for commercial applications, most commonly used in recessed cans, portables, ceiling fixtures, and wall sconces. Suitable for use in dry location enclosed indoor and outdoor fixtures. Average lamp life 10,000 hours. Length: 6.8 inch.