On 1/26/2013 5:25 PM, bud-- wrote:

The graph I have goes to 90% voltage. At that point the life is
increased 50% (and rising fast). The lumens are 70%. At half voltage the
lumens would be a rather low percentage (far lower than 60W equivalent).


I read the wrong scale. At 90% voltage the life is already 3.5 x