I BUY MY PANELS FROM : http://www.selectsolar.co.uk/pics/SP3-37%20(22mA%20at%203v).php
THE LINK ABOVE IS THE PANEL I PARTICULARY USED. THE REASON I USE THIS PANEL IS BECAUSE IT PROVIDES THE RIGHT VOLTAGE FOR MOBILE PHONE BATTERIES AND IT IS PAPER THIN AND IT HAS A MIRROWED FINISH SO IT DOES NOT LOOK UGLY ATTACHED TO YOUR PHONE.
THE PANEL IS 22MA @ 3VOLTS AND MEASURES JUST 3.7cm by 6.4cm
more info ont his panel here:lightweight, paper thin and durable
flexible enough to curve around an object 3 inches in diameter
will not break if dropped
wide range of sizes and power configurations available
thin profile enables them to be easily integrated with devices for solar recharging or direct power
Ideal for recharging AA, AA, 6V and 2V batteries
Please note: these modules do not have a UV stabilised surface.
Simple to connect - just solder or crimp to the copper tape.
Size 3.7cm by 6.4cm.