Low-power solar panels are an excellent alternative to other energy sources. Skillful use of inexhaustible (at least in our lifetime) deposits of solar energy allows for the construction of many useful devices that can operate for many years in places without access to mains power - even where it is not possible to replace the battery or battery. In this category you will find low-power solar panels dedicated to powering small devices in a modern and environmentally friendly way.
Step-Down Voltage Regulator D24V25F6 - 6V 2,5A - Pololu 2852
Index: PLL-03156
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- On sale!
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LED RGB 12mm WS2801 chain digital addressed - 25pcs - Adafruit 322
Index: ADA-02443
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ElecFreaks Ring:Bit Car V2 - a set for building a smart car
Index: EFS-13738
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Low-power solar panels
Products: 7
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Solar power module DFRobot with 2V / 160mA solar cell
This module allows you to charge a 3.7V Li-pol battery with the included mini solar cell or microUSB port and power your devices with 3.3V. Included is a cable with JST...
Index: DFR-12855
Index: DFR-12855
Solar panel 3,5W/6V 165x135x3mm
Solar cell with 3.5 watts of power and an output voltage of 6 volts. The dimensions of the board are: 165 x 135 x 3 mm. Leads are pads for soldering the wires.
Index: AKU-06988
Index: AKU-06988
A 1.0 W solar cell with an output voltage of 6.0 V. The dimensions of the plate are: 136 x 110 x 3 mm . The outputs are pads for solder cables.
Index: AKU-03694
Index: AKU-03694
Solar cell 1,2W/9V 115x115x3mm
A 1.2 W solar cell with an output voltage of 9 V. The dimensions of the plate are: 115 x 115 x 3 mm. The outputs are pads for self soldering of cables.
Index: AKU-03502
Index: AKU-03502
Solar cell 0,4W/5,5V 65x65x3mm
A 0.4 W solar cell with an output voltage of 5.5 V. The dimensions of the plate are: 65 x 65 x 3 mm . The outputs are pads for solder cables.
Index: AKU-03689
Index: AKU-03689
Solar cell 0,7W/5,5V 95x95x3mm
A 0.7 W solar cell with an output voltage of 5.5 V. The dimensions of the plate are: 95 x 95 x 3 mm . The outputs are pads for solder cables.
Index: AKU-03695
Index: AKU-03695
Solar cell with 3 W output voltage of 6 V in a plastic protective frame. Dimensions of the module are: 255 x 145 x 9 mm.
Index: AKU-06990
Index: AKU-06990
Photovoltaics (PV) in practice
If you intend to use low-power solar panels in practice, you should take into account - already at the initial stage of design - some key characteristics of this type of energy source. First of all, it is necessary to take into account in the project a large diurnal variation, which applies to the power obtained from the solar panel. Depending on the weather (cloud cover), as well as time of day and geographical location, the available power generated by the cell changes in a wide range. Therefore - in order to obtain stable supply voltage - it is necessary to use good DC/DC converters. On the other hand, it is worth to provide in the system a buffer power supply - a battery, which in the period of good sunshine will accumulate excess energy, so that the system (being the load of the panel) can use this reserve at night or in worse weather conditions.
Small solar panels at Botland store
In this category you will find a very wide range of low-power solar panels with dimensions ranging from a few to just over 25 cm, differing in both the nominal voltage generated and the level of output power. The smallest of them - a 0.4 W cell - generates a voltage of 5.5 V and is equipped with soldering pads for connecting wires. We also have another version of this cell, equipped with a short lead-out cable with a USB A type socket. Larger cells - e.g. with dimensions of 13.6 cm x 11 cm - are capable of generating power of 1 W (at 6 V), and the largest panel available in this category provides as much as 5 W of power and has a very useful form of a flexible sheet that can be easily mounted on various types of surfaces.
Ready-made solar system, mini-size
A very attractive solution, perfect for starting the adventure with photovoltaics, is a small module DFRobot with a 2 V/160 mA cell. The tiny board of dimensions of only 30 x 30 mm allows charging a lithium-polymer cell (1S, i.e. 3.7 V) with a current up to 100 mA via a micro USB cable or using the included waterproof low-power solar panel (50 x 50 mm). Very importantly, all the circuitry needed for reliable operation is on board, including the SPV1050 solar controller IC and USB charger.