This Neptun Compact Fluorescent bulb will really light up the place and save you nearly 75% on energy costs when compared to a regular 200 watt bulb and 126 over the life of the bulb. Need extra light over a workbench or a trouble-light? Just replace your 200 watt bulbs with this super efficient 8,000 hour 42 watt Compact Fluorescent Light Bulb. How easy is that? Changing a bulb and saving money. These 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 126 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 8,000 hour life, you'd need 6 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!