Best solar power lights I have ever tried

D.Light

Cheapest option is the "S2"

Which has 25 Lumens strength

I sell it for $20 plus postage.

Boosting my electricity supply via pedal power

We run entirely on solar power (off-grid) , with plans to include a wind turbine into our system. I want to use my exercise time to add power to my 24V batteries, particularly on cloudy days. So I have started my research into using pedal power, and the best web location I have found on the subject... and very interesting! is from

LOW-TECH MAGAZINE : Doubts on progress and technology 

Any good ideas for me?