I address this by sticking this light <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;product&#x2F;B002WTCHLC" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;product&#x2F;B002WTCHLC</a> 9 inches from my face instead of the prescribed 12 inches for 10,000 lumens, and use it for 40 instead of the normal 30 minutes&#x2F;day.  Inconvenient, but has made <i>major</i> improvements from the (still useful but not as much) Phillips 6x10 array of blue LEDs I started with at 12 inches 3*30 minutes a day.  Also helps me wake up in the morning ^_^.<p>That said, this seems to be right to me, but I could well believe there are people who need 30,000 lumens and therefore have to get more creative.