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POWLSOJX 100 A selectable, 12/24/36/48 V, seven modes review

A controller selectable at 60, 80 or 100 A for 12 to 48 V systems, with seven intelligent modes including dusk-to-dawn operation for street lighting.

The bottom line A flexible controller with a genuinely useful display and lighting modes described in detail. It publishes no PV input ceiling, which on a unit sold for arrays up to 100 A is the omission that matters most.

A controller sold on its modes as much as on its current.

The selectable rating

60 A, 80 A or 100 A. One unit covering three array sizes, with the choice made at installation. That is a setting rather than a specification, and it means a smaller bank can be protected from being charged too hard.

The modes

Dusk-to-dawn with a ten-minute delay for street lighting. A timing mode for programmed discharge. Seven in total. This is a controller aimed at lighting installations as much as at battery banks, and the modes describe that clearly.

The display

Battery voltage, PV charge and discharge current, temperature and fault codes, backlit. Temperature and fault codes are the two that most displays in this family omit, and they are what turn a fault into a diagnosis.

The ceiling that is missing

No maximum PV input voltage anywhere. A string above a controller’s ceiling damages it, and the figure rises in cold weather. Seven of eleven controllers in this catalogue publish nothing here, and this is one of them.

Availability

German, French, Italian and Spanish Amazon stores quoted 38 € to 50 € when this page was compiled.

British Amazon store carries it too, priced in its own currency, which the euro range above deliberately omits.

American Amazon catalogue carries an entry for it, with nobody selling.

These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.

Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.

What it gets right, and what it leaves out

Strengths

  • A selectable current rating, so one unit covers three array sizes
  • The display shows temperature and fault codes alongside the usual voltages and currents
  • Dusk-to-dawn and timing modes are described with their delays, for lighting installations

Compromises

  • No maximum PV voltage, which is the ceiling a string is checked against
  • No efficiency figure, only a description of the algorithm
  • No wiring sizes at up to 100 A

Specifications

Charge currentSelectable at 60 A, 80 A or 100 A, from the title
Maximum PV voltageNowhere in the listing
EfficiencyAbsent as a figure — an MPPT algorithm is described as continuously optimising the operating point, first bullet
Battery profilesLead-acid and lithium, second bullet, with automatic 12/24/36/48 V detection
MonitoringBacklit LCD showing battery voltage, PV charge and discharge current, temperature and fault codes, fourth bullet
Wiring sizesNowhere in the listing
EnclosureNowhere in the listing — three-layer protection is named without an ingress rating
Amazon referenceB0F66Z3JT1 (same reference on 6 Amazon marketplaces)
EAN0053701184913

Questions owners ask about this one

What does a selectable current rating actually change?

It sets the maximum the controller will draw from the array into the battery. Choosing 60 A on a unit capable of 100 A protects a smaller battery bank from being charged harder than it should be, which is a real setting rather than a marketing option.

Why are lighting modes on a charge controller?

Because off-grid lighting is one of the commonest uses for a small solar system. Dusk-to-dawn with a delay, and timed discharge, mean the controller runs the lamp without any other equipment. It is a different product from a battery charger, sold on the same shelf.