12V Mini Solar Panel – Real power in a palm-sized format
Working on a DIY project that needs to run off-grid? Whether it’s an outdoor sensor, a GPS module, or an autonomous alarm system, this 12V mini solar panel is the perfect solution. It’s compact, lightweight, and highly versatile—delivering reliable power even when the sky is overcast.
Note: An LM7805 voltage regulator (required for a stable 5V output) is not included and must be purchased separately.
Why choose this model? (Key Benefits):
- Dual-voltage flexibility — Easily reconfigure from 12V/100mA to 6V/200mA by switching to a parallel connection, with no extra components required.
- Works in low light — These photovoltaic cells generate power even under artificial indoor light or cloudy skies, not just in direct sunlight.
- Compact 115 x 85 mm footprint — Designed to fit easily into project enclosures, onto lids, or on mobile surfaces without taking up unnecessary space.
- Compatible with Arduino, ESP8266, ESP32, and Raspberry Pi — Perfectly suited to power the most popular microcontrollers used in IoT projects.
- Zero running costs — Once installed, it generates energy maintenance-free, eliminating the need for frequent battery changes or external power cables.
Performance and Specifications
The panel features an internal structure of two rows of photovoltaic cells, each providing 6V. When connected in series, they deliver 12V at 100mA—ideal for environmental sensors, GPS modules, or low-power alarm systems. When connected in parallel, the panel outputs 6V at 200mA, doubling the available current for applications that require lower voltage.
With a nominal power of 1.5W and a lightweight build, it is perfect for mounting on mobile structures or prototype casings. If you require a stable 5V for Arduino or ESP modules, simply add an LM7805 regulator or a DC-DC step-down converter—both of which are widely available at electronics retailers.
| Parameter | Value / Detail |
|---|---|
| Operating Voltage | 12V (series) / 6V (parallel) |
| Nominal Power | 1.5W |
| Operating Current | 0–100mA at 12V / 0–200mA at 6V |
| Dimensions | 115 x 85 mm |
| Cell Structure | 2 rows x 6V, configurable series/parallel |
| 5V Stabilization | Requires LM7805 regulator (not included) |
| Recommended Applications | Arduino, IoT, sensors, GPS, autonomous alarms, DIY |
| Operating Conditions | Indoor and outdoor, efficient even in low light |
Package Contents
- 1 x 12V / 1.5W Mini Solar Panel (115 x 85 mm)
Frequently Asked Questions
Can I power an Arduino directly from this panel?
Yes, but you will need a regulation stage. The panel outputs 12V, while Arduino typically requires 5V. An LM7805 regulator or a DC-DC step-down converter will handle this conversion quickly and affordably.
How do I get 6V instead of 12V?
It’s simple: reconnect the two rows of cells in parallel instead of series. This results in 6V at 200mA—doubling the current compared to the standard configuration.
Does it work on cloudy days or indoors?
Yes. While power output will be lower than in direct sunlight, the panel remains functional under diffuse or artificial light, making it excellent for indoor prototyping.
Can I charge a battery with it?
You can charge small 12V batteries, but you must add a charge controller between the panel and the battery. Without one, you risk overcharging and damaging the cells.
Photo Gallery
****a**** ****r*** –
Perfect for my science project. It generates enough power to charge small batteries even on slightly cloudy days.