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  1. Drill a hole on top of the mailbox and insert a ----> Without its pole. Optional, add a door switch for the LED. Done fast for $1. Some silicone sealant may help.
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  2. http://www.talkingelectronics.com/projects/SolarLight/SolarCharger-2.html
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  3. You points are well made; thanks. On day one I found two voltage boosters on Ebay that gave more than 100 volts so I ordered both of them from China. The first one I received was a 12v dc to 200 v dc. After connecting it up and adjusting it for 200 v I put a 100k resistor across the output and got 2 volts output! It took a one mega-ohm load to keep 200 v. The second one (12v dc to 220 v ac) works well. I connected it to the 220v to 120v step down transformer and into a full wave bridge rectifier with a 100mfd capacitor and got 140 v dc; 9.6 volts input. With a 8.4 v NiMH rechargeable battery I get 128 v dc. So I am happy with that and very surprised that the 50/60 hertz transformer works at all!
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  4. I buy electronic parts from Digikey and Newark because they have offices and warehouses in my country and they stock everything. What can't you find?
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