
We used four 150WJ Type T3 halogen bulbs in our family room. So we used 600 watts per hour per hour to get 600 watts of light and I just decided to keep my electric bills down. This is the best lamp I could find on the market. So with these lights I was only using 40 watts per hour and was getting less than 240 watts of equivalent light. This has greatly reduced my hourly electricity bills despite getting less than half the light! I have now replaced those bulbs and reverted to the old 78mm 150w halogen bulbs as it was too dark and we all needed more light in the family room. I've now stopped using other light sources to compensate for the "loss of light"!

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