Here are the dimensions that are posted on eBay from some lights I ran across that are the round floodlight style
Dimension: about 3.15 in x 2.95 in x 2.95 in (8.0 cm x 7.5 cm x 7.5 cm)
And here is the eBay link so you can haven idea how it looks
http://www.ebay.com/itm/High-Power-Wate ... 4583wt_922do you think this will work with your build?
Or even the style Dan originally used in his build which I already purchased one of
 Dimension  4.488" (W) x 3.386" (H) x 3.465" (D)
And here is the link for that
http://www.ebay.com/itm/110V-240V-AC-10 ... 0585674539Do you think these will be to much light for the camera or will it be better for image quality?
Do you know if the reflector you intended to use can be used with led lights as well?