PWM Solar Charge Controller 20A, 12V/24V Input
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Prices updated: 12 Oct 2026
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About this product
A PWM solar charge controller rated 20 A for 12 V and 24 V solar systems, regulating charge from a solar panel into a battery. It includes automatic light control, an LED and LCD status display, and protection features such as overload and short-circuit protection. It is suited to small off-grid lighting and solar setups.
Specifications
- Control type
- PWM
- Rated current
- 20 A (per title)
- Input voltage
- 12 V / 24 V
- No-load loss
- <5 mA
- Automatic light control
- Yes
- Display
- LED and LCD
Frequently asked questions
How should I wire the controller?
Connect the battery to the battery terminals first, then the solar panel to the PV input, and finally the load to the load terminals. Confirm polarity before powering up, and set the system voltage to match your battery bank.
Does it match my battery and panel voltage?
It supports 12 V and 24 V inputs. PWM controllers work best when the panel voltage is close to the battery voltage, so a 12 V nominal panel is typical for a 12 V battery. The listing's technical table shows 10 A, 20 A and 30 A models, so check the rated current printed on the unit.
