Mr. Bulk, is that because the lux that you use are not "selected" ones? /ubbthreads/images/graemlins/grin.gif
Zmoz, I also used 2 luxs to light up an area and while the brightness might not be twice, the increase in brightness makes the addition of one lux is so welcome. BUT, 3 luxs are not welcome. Each will only draw a couple hundreds of mA, not quite 400 or 300. I think it was only 200 mA, so the marginal increase only very small compared to 2 lux.
that is my observation. Others might have a totally different ones.