It would be interesting to see some current measurements of your new LED lights. Some (chinese?) manufacturers seem to widely overrate their lights. Just because it says X watts doesn't mean they actually draw that power, much less output it as light.
I got some "20w Cree work lights" from ebay and they draw just 12,5W. Also producing some heat, ther can't be more than 10W of light output from them.
/Marcus