These UL Listed 105 watt, 120 Volt CFL, E26 medium base replacement compact fluorescent light bulbs have a color temperature of 2700K, 4100K, or 5000K. As a reference point, the warm yellowish glow of an incandescent light that you are used to is about 2700-3000 Kelvin (K).
This spiral CFl (also called a twisty bulb, curly bulb or spring bulb) fits fixtures with the larger E26 medium base socket. They are 4.31 inches wide and 10.75 inches MOL. They incorporate an electronic ballast for Instant On, flicker free operation. These compact fluorescent bulbs are eco-friendly lighting products that consume just 105 watts of energy and produce the close equivalent light output of a 400 watt incandescent medium base bulb (7000 lumens).
These CFL bulbs are rated for 10,000 hours and carry a 1 year limited warranty. The minimum starting temperature is 0 degrees Fahrenheit and the maximum operating temperature is 100 degrees Fahrenheit. These bulbs are not rated for use in totally enclosed fixtures or on circuits with dimmers, timers or other control devices. Do not allow these bulbs to come in contact with outdoor elements (rain, snow, etc).
Typical applications for CFL light bulbs include warehouse and general decorative outdoor lighting applications in residential, office, retail, restaurant, school, hospital and hotel/motel locations.