Solar panel question

Hello i am long time lurker of instructables.com and i love the site and its inspired me to build a few things. that said onto my question.  i was at my local Dollar Tree Store (Dollar Store) and noticed the solar powered walkway lights. so i bought a few and decided i could salvage the solar panels.. so a few screws and some applied pressure later i have some small cells 35.6mm by 29.6mm with a model number (SC3630S-4N) and everything so i googled it and i get this website as the only one listing voltages and mA's but there are two sets and i am unsure which set i need to be aware of and exactly what it all means. http://www.aliexpress.com/product-fm/432233432-solar-cell-Embeded-Modules-Outdoors-wholesalers.html so any one can explain to me what the 4 values mean i know (V) is voltage and (mA) is amperage but why list them twice.

Topic by jgosselin   |  last reply


Build PV solar panels from broken solar cells

The sun's energy may be free, but solar panels can be quite expensive.  Still hoping to get off the grid? VIRON has a great Instructable, How to make PV solar panels, teaching how to make your own from broken or surplus solar cells! From the introduction: In essence, this involves ways to connect cells, which may produce more or less than one volt, and not only try to increase power output but also decrease the load, that is, efficiently conserve the energy whether it is meager or significant. For example, even the weakest solar panels can run watches, calculators, radios, charge batteries, and if a computer were specifically designed to, it would be as solar-powerable as a calculator. Check out the Instructable for info on finding and foraging usable solar cells, instructions on preparing different types of broken cells, tips for getting more power out of your panel, and instructions for wiring the whole thing up to power your devices. Inspired? Planning to try piecing your own solar panels?  Already off the grid, and planning something even better?  If you do, be sure to post an Instructable so the rest of us can learn something new. This post has been sponsored by Pepsi. The Pepsi Refresh Project celebrates the people, businesses, and non-profits with ideas that will have a positive effect on our world.

Topic by canida   |  last reply


I want to buy a 40W solarpanel how can I calculate how "heavy " the controller and the inverter should be?

The man in the shop told me it would be wise to buy these things too. If I want to use it continiously he advised a battery. How heavy should this be and how can I calculate it for a panel of 80 Watt Thanks in advance

Question by    |  last reply


How can I power my 5V phone with a 7V solarpanel? Answered

Hey I just bought a lots of 5v zener diodes and I have a solar panel I want to charge my phone with it. How do I connect the Zener diode correctly so I Wont damage the phone? Any schematic on this Any other components I need?

Question by Frederikw2   |  last reply