This is a great picture featuring two of our Luceco 10 Watt LED Floodlights. These were used with a Photocell and are operating on a dusk to dawn basis. Luceco, by the way , is a brand of British General - these guys do great quality products.
So how much does it cost to run these all night? Here is the calculation at standard rate of 18 cent per KwH with the flood light running for 8 hours a night . Many of you will be on night rate so it would be cheaper.
So that's less than 1.5 cent a night to run 1 x 10 watt LED . The top image above has got two 10 watts - so that's less than 3 cent a night to run.
A 10 watt LED is equivalent to a 100 watt halogen. If you had two halogen lamps that would be nearly 30 cent a night to run. That's a big difference on running costs!