Comparing MLPE Manufacturers: Why Fonrich Stands Out for Thai Solar Projects

Some brands have impressive-looking product parameters but often “fail unexpectedly”; others rely on overseas after-sales services—when problems occur, the after-sales cycle is long and inconvenient; some devices are incompatible with local inverters, and so on. However, most people who have used Fonrich’s PV equipment have given it rave reviews. This doesn’t mean Fonrich’s products are “super advanced”; it means Fonrich truly understands the needs of those working in Thailand’s PV industry. These real advantages are more useful than anything else.

Fonrich’s “Real Advantages”: Every Point Targets the Pain Points of Thailand’s PV Professionals!

1. Products Can Withstand Thailand’s “Harsh Weather”—No Need to Worry About Bad Weather Every Day

Rooftop temperatures in Thailand can reach 60℃ in summer, and the rainy season brings frequent heavy rains. Ordinary MLPE devices often either stop working in high temperatures or short-circuit in water. Fonrich’s products are like being “tailor-made for Thailand”:

Both optimizers and RSDs have an IP68 waterproof rating;

The housings are made of UV-resistant engineering plastic—after 3 years of use in intense sunlight, the shells don’t crack or become brittle.

2. After-Sales Service Is “Surprisingly Fast”—Local Support Available, No Need to Wait for Overseas Help

The biggest fear in the PV industry is “broken equipment with no one to repair it,” and Fonrich’s after-sales service in Thailand is truly excellent:

Fonrich has its own technical team in Thailand. What’s more, the after-sales staff can speak Thai—communication is effortless.

3. Compatible with Both New and Old Power Plants, and All Types of Inverters—No Major Modifications Needed

Many old power plants in Thailand need retrofitting, and the biggest headache is “having to rewire or replace inverters just to install new MLPE.” Fonrich excels in this aspect:

Its optimizers and RSDs are compatible with over 90% of inverters on the market—whether they are new models from Huawei or Sungrow, or old, niche inverters from over a decade ago, they can basically be installed directly. Last year, when helping retrofit a 2016-vintage old power plant, the client originally used an inverter from a Korean brand and was worried about incompatibility. Fonrich’s technical team conducted remote debugging in advance, and the on-site installation was completed directly without replacing wires. The project was finished in 3 days, saving 20% more in retrofitting costs than expected.

Moreover, installation is extremely simple—technicians don’t need special training to get started. Fonrich also provides matching installation tools, even including screws. The details are well taken care of.

4. No “Parameter Gimmicks”—Genuine Results in Power Generation and Safety

Some manufacturers boast about “99.8% conversion efficiency” or “superior arc detection,” but fail to deliver in reality. Fonrich doesn’t do this; instead, it lets real performance speak for itself:

At a shaded rooftop project, after installing Fonrich’s optimizers, power generation increased by 22% compared to not having them installed, and the client’s monthly electricity bill was significantly reduced;

At a BIPV project using Fonrich’s RSD, the voltage was reduced to below 30V in just 18 seconds in an emergency—faster than Thailand’s 30-second standard—and passed inspection on the first try.

Clients don’t need to calculate complex parameter values; they just need to see “whether power generation has increased” and “whether safety is guaranteed,” and Fonrich always delivers tangible results.

Why Fonrich Stands Out

Fonrich stands out not because it is particularly famous, but because it solves the pain points of those in Thailand’s PV industry: reliable products, fast after-sales service, strong compatibility, and effective performance. When cooperating with Fonrich, there’s no need to worry about broken equipment, slow after-sales support, or troublesome retrofits. Choosing Fonrich is the right decision.