MPPT converts surplus voltage into amps; PWM throws it away · review
Fuhuihe 100 A, 12/24/36/48 V, waterproof, LCD review
A 100 A controller for 12 to 48 V systems with dual 5 V USB ports, single-touch settings and protection against over-voltage, over-current, over-charge and deep discharge.
The bottom line The most completely listed protections in this family, with four chemistries and a display whose contents are itemised. It calls itself waterproof without a rating and publishes no PV ceiling — the two figures an outdoor installation needs.
A 100 A controller with the most thorough protection list here.
What it protects against, named
Battery over-voltage. Over-current. Power failure. Over-charge. Deep discharge. Reverse connection. Six, listed individually in the third bullet rather than summarised. On a controller between an array and an expensive battery bank, that list is the product.
The display, itemised
Operating mode, battery voltage, PV charge current, battery discharge current. The second bullet names each, with single-touch adjustment. Knowing what a display shows before buying is worth more than knowing it has one.
The word that is not a rating
Waterproof, in the title. No IP code anywhere. An ingress rating is two digits and a defined test; an adjective is neither. For a controller sold partly on outdoor use, that is the specification to ask the maker for.
The ceiling, again
No maximum PV input voltage. The SOGTICPS in this family publishes 100 V; this one publishes nothing, and the two are otherwise closely matched products.
Availability
German, French, Italian and Spanish Amazon stores quoted about 49 € 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
Battery over-voltage, over-current, power failure, over-charge, deep discharge and reverse protection all named
The display lists exactly what it shows — operating mode, battery voltage, PV charge current, discharge current
Four chemistries named including LiFePO4
Compromises
Described as waterproof with no ingress rating code
No maximum PV voltage
No wiring sizes at 100 A
Specifications
Charge current
100 A, from the title
Maximum PV voltage
Nowhere in the listing
Efficiency
Tracking efficiency not less than 99 %, first bullet; no conversion efficiency is published
Battery profiles
Sealed, gel, flooded and LiFePO4, fourth bullet, with automatic 12/24/36/48 V detection
Monitoring
LCD showing voltage, current and battery status, with single-touch adjustment and seven operating modes, second bullet
Wiring sizes
Nowhere in the listing
Enclosure
Described as waterproof in the title; no ingress rating code is published
Amazon reference
B0F98V7DFV (same reference on 6 Amazon marketplaces)
EAN
0717206174731
Questions owners ask about this one
What is the difference between “waterproof” and an IP rating?
An IP rating is two digits describing dust and water resistance, assessed against a defined test. “Waterproof” is an adjective. On a controller mounted in a locker or on a shed wall the difference decides whether it survives, and only the rating is checkable.
Is 99 % tracking efficiency a differentiator?
Not really. Figures above 99 % are normal for modern trackers, and three controllers in this family quote something similar. It describes how close the algorithm gets to the panel’s best point, not how much of that reaches the battery.
60/80/100 A selectable · maximum PV voltage not published · MPPT algorithm named, efficiency not published · lead-acid and lithium · backlit LCD with live data and fault codes · wiring sizes not published · three-layer protection
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.
Best for: A street lighting or garden installation where the timing modes do most of the work.
100 A charge · 100 V maximum PV input · tracking efficiency not less than 99.5 % · sealed, gel, flooded and LiFePO4 · LCD with clock and seven modes · wiring sizes not published · enclosure not rated
A 100 A controller for 12 to 48 V systems with a published 100 V PV input ceiling, whose listing describes it as combining MPPT and PWM charging technology.
Best for: A 48 V off-grid array whose string voltage is already known to sit under 100 V.
20 A charge · 100 V maximum PV input, in the model name · multi-stage adaptive algorithm · presets for common types plus fully custom profiles · Bluetooth with VictronConnect and GX compatibility · wiring sizes not published · enclosure not rated
A 20 A SmartSolar controller whose model number states its limits — 100 V input, 20 A output — with a multi-stage adaptive algorithm, battery presets and integrated Bluetooth.
Best for: A system that will grow, where the controller has to fit into a wider monitoring installation later.
