Solar lights and phone charging for one room, under ₱10,000
Open in the lab ▸Make my own copy
The smallest useful solar system: a 50 W panel, a 10 A charge controller and a 12.8 V 12 Ah LiFePO4 battery run two 9 W LED bulbs and a USB charger for phones. That is about 150 Wh a day stored: two bulbs for 5 hours and a phone or two every evening, with the controller cutting the loads off before the battery runs flat. Good for a bedroom, a sari-sari store counter or a fishing hut. Every part is on the bench, and Buy all the parts (on the project strip, or Menu → Make) lists them with an estimated price and shop links. Estimates are for the Philippines; check each listing before you buy.
What is on the bench
13 parts, 20 wires.
| DC breaker | 2 |
|---|---|
| Fuse | 2 |
| 12 V DC LED bulb | 2 |
| Solar panel | 1 |
| Solar charge controller | 1 |
| LiFePO4 battery | 1 |
| Ground symbol | 1 |
| Surge protector (SPD) | 1 |
| USB step-down module | 1 |
| Smartphone | 1 |
Put it on your page
The project runs live inside the frame: readers can press buttons, turn knobs and read the meters.
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Link
https://zencircuitlab.com/p/zclsroom
Published by its author under the lab's community terms: it may be opened, copied and changed by anyone. Simulation results are for learning; check a real build against the parts' datasheets.