T4 G24Q-3 4-Pin Twin Tube Compact Fluorescent lamp includes 26 watts with choice of 3000K (1150 lumens) or 3500K (1900 lumens) color temperature, 82CRI. 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. 3000K average lamp life 12,000 hours. 3500K average lamp life 16,000 hours. 6.5 inch height.