🌞 Go Solar, Go Smart! Unleash the power of the sun in your hands.
The SUNYIMA Mini Monocrystalline Solar Cells Kit includes 10 high-efficiency solar panels, each measuring 50mm x 50mm, designed for DIY solar projects. With a power output of 2V and 160mA, these panels are perfect for outdoor activities and emergencies, providing reliable energy even in less-than-ideal weather conditions. Constructed from durable monocrystalline silicon, they boast an impressive conversion efficiency of up to 23.5%, making them a smart choice for eco-conscious consumers.
| Product Dimensions | 5 x 5 x 5 cm; 100 g |
| Material type | Monocrystalline Silicon |
| Manufacturer | AOSHIKE TECH |
| Item model number | 752777774508 |
| ASIN | B087TK7T7T |
A**V
Thanks
Thanks thanks
A**N
Arrived on time
Got these a few days ago and are as advertised, seem to be good little solar cells. Perfect for charging up 1.2V NiMh factoring in a 0.7V blocking diode, even better with a Schottky. Might buy some more.
A**R
Easy to use
These are easy to use in DIY projects, tested with a volt metre and they do provide as specified, they can even surpass the advertised specification in direct sunlight. Would buy again.
L**K
Well made but poor efficiency
The panels are well made, sturdy, and look good. But they produce nowhere near the specified conversion efficiency.Today is a cloudy day and at 3000 lux illumination, one panel produces only 3mW of power (1.5V, 2mA). That calculates to only around 7% efficiency, not over 20% as the description says.Here's the calculation, if anybody is interested. I measured that the active area of the cell is 42x42 mm, which is 0.001764 m2. Full solar illumination is defined as 1000 W/m2 at 118000 lux. The power is proportional to illumination, i.e. at 3000 lux, full solar power is 1000W/m2 * 3000 lux / 118000 lux = 25.4W/m2.As the panel produces 3mW with 0.001764 m2 surface area, the efficiency is:0.003W / (0.001764m2 * 25.4W/m2) = 6.7%
A**R
Not as rated so returned.
I tested several cells and allowing for the lab conditions element, 160ma turned out to be 8ma.
Trustpilot
1 month ago
3 weeks ago
