This 42 Watt DAYLIGHT 5000K bulb will light up the place and save you nearly 80% on energy costs when compared to a regular 175 to 200 watt bulb and 115 over the life of the bulb.Need extra light over a workbench or in a trouble-light? Just replace your 200 watt bulbs with this super efficient 10,000 hour 42 watt CFL. How easy is that? Changing a bulb and saving money. These Daylight 5000K 42 watt CFL bulbs give the same amount of warm light as the 200 watt regular bulbs they replace. They practically pay for themselves in months. And this one will save a whopping 115 or more during its life. So instead of paying the utility company you can start paying yourself. With its Integrated Circuitry it has an instant soft-start. No more waiting for them to warm up. With an 10,000 hour life, you'd need 8 regular 200 watt bulbs to equal it. You know how quick those burn out. Less trips to the store, less hassle, more savings- all from changing a light bulb! Here are the facts: Light output: 2400 Lumens Energy used: 42 watts Life: 10000 hours Overall length: 7.25" Color Temp: 5000k cool white light FIVE year manufacturer's warranty Projected Lifetime energy savings: 115 or more NOT DIMMABLE! Want more info on CFL's?