T4 G24Q-3 4-Pin Twin Tube Compact Fluorescent Lamp. 26 Watt with choice of 3000K or 3500K color temperature, 82CRI. 1710 initial/1450 mean lumens. 4-Pin lamps are for use with dimmable electronic 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: 6.5 inch.