I wanted to conserve energy and replace a regular 65W flood light bulb with a 65W CFL flood light bulb. The box indicated that regular floods were 650 lumens and that the CFL was 750 lumens. After I changed out the first flood, I noticed that the CFL was not even as bright as the 650 lumen, 65W regular flood. I also have noticed when replacing incandescent bulbs through out the home but, it really showed a difference when it came to the floods. What watt CFL is equivalent to a regular 65w flood? What part am I missing here in the lumens ratings?