I have only made homemade LS with $20 power supplies etc...but I drove them to the max.
I prefer the Versalux as it had a light that is more suitable to lighting a room....vs a spotlight. It seems brighter as I get more usefull light out of it. It you shine the versalux on a white ceiling, it will light the whole room nicely with the bounced light. If you shine a LS on the ceiling, you blister paint on one spot. Battery life gets GREAT the higher voltage you go. I am not sure it would be fair comparing for this reason.... The LS does not have the greatest battery life ... but it is a different beast for a different purpose IMHO
. I will always have both.
Here is Versalux.....
Battery
Configuration Highest output
life (hours) Low output(15%)
life (hours)
(1) 9 Volt Alkaline 4 + 40 + (One 9 volt.. 4 hours high..40 hours low etc etc)
(3) AA Alkaline (series) 14 + 95 +
(4) AA Alkaline (series) 17 + 120 +
(4) D Alkaline (series) 110 + 770 +
(4) AAA Alkaline (series) 6 + 48 +
(4) AA NiMH (series) 9 + 64 +
b(4) C NiMH (series) 12 + 87 +