97.5% Efficiency
High energy conversion
Deye Solar Inverters & Lithium Batteries: Prices in Bahrain — Authorized DistributorDeye 4.2 kW Single-Phase String Solar Inverter SUN-4.2K-G05P1-EU-AM2

4.2kW single phase string inverter with dual MPPT and 97.5% efficiency.
Authorised Deye distributor for Bahrain — certificate No. GFKFLFI1.
Deye SUN-4.2K-G05P1-EU-AM2, 4.2 kW, is also searched as deye inverter.
String solar inverter price in Bahrain: BHD 218 – Deye 4.2 kW SUN-4.2K-G05P1-EU-AM2.
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The Deye SUN-4.2K-G05P1-EU-AM2 is a 4.2 kW single-phase string inverter in the String (G) line, a half-step above the 4 kW frame for homes whose consumption has outgrown it. Its two MPPT inputs are rated at 18 A of operating current each and withstand 27 A of short-circuit current per input, which means most modern high-current modules can be strung without derating the tracker. Up to 6.3 kW of PV can be connected under a 550 V ceiling, tracked between 70 and 500 V from an 80 V startup. Rated AC output is 4.2 kW at 220 or 230 V on an L+N+PE connection, with 4.62 kVA of apparent power and a maximum output current of 21 A. Reverse-polarity protection, insulation impedance detection and a built-in DC switch cover the array side. Weighing 7.7 kg in an IP65 case, the inverter carries a stated 5-year warranty. We are an authorised Deye distributor and supply the SUN-4.2K-G05P1-EU-AM2 from our own stock, with technical support before and after the sale.
Specifications last updated 24 January 2026
| AC Output Overcurrent Protection | Yes |
|---|---|
| AC Output Overvoltage Protection | Yes |
| AC Output Short-Circuit Protection | Yes |
| AC Voltage Tolerance (×Un) | 0.85-1.1 |
| Anti-Islanding Protection | Yes |
| Anti-PID Function | Optional |
| Arc Fault Circuit Interrupter (AFCI) | Optional |
| DC Component Monitoring | Yes |
| DC Injection Current (% of In) | <0.5 |
| DC Reverse Polarity Protection | Yes |
| European Efficiency | 97.0 % |
| Grid Connection Form | L+N+PE |
| Insulation Impedance Detection | Yes |
| Inverter Topology | Non-Isolated |
| Max. AC Output Apparent Power | 4620 VA |
| Max. AC Output Current | 21/20.1 A |
| Max. Efficiency | 97.5 % |
| Max. Input Short-Circuit Current | 27+27 A |
| Max. Operating PV Input Current | 18+18 A |
| Max. PV Input Power | 6300 W |
| Max. PV Input Voltage | 550 V |
| Number of MPPTs | 2 |
| MPPT Efficiency | >99 % |
| MPPT Voltage Range | 70-500 V |
| Overvoltage Category | OVC II(DC), OVC III(AC) |
| Power Factor Range (Leading to Lagging) | 0.8-0.8 |
| Rated AC Output Active Power | 4200 W |
| Rated AC Output Current | 19.1/18.3 A |
| Rated Grid Frequency | 50/45-55, 60/55-65 Hz |
| Rated Output Voltage | 220/230 V |
| Rated PV Input Voltage | 360 V |
| Residual Current Detection | Yes |
| Startup Voltage | 80 V |
| Strings per MPPT | 1+1 |
| Surge Protection Level | TYPE II(DC), TYPE II(AC) |
| Current Total Harmonic Distortion (THDi) | <3 % |
| Virtual Synchronous Generator (VSG) Support | Yes |
| Warranty (Years) | 5 |
| Zero Export Support | Yes |
| Cabinet Dimensions | 305 x 280 x 180 mm |
|---|---|
| Communication Interfaces | RS485, RS232 |
| DC Switch | Yes |
| Monitoring Modes | GPRS, Wi-Fi, Bluetooth, 4G, LAN (optional) |
| String Monitoring | Optional |
| Weight | 7.7 kg |
| Derating Start Temperature | 45 °C |
|---|---|
| IP Rating | IP65 |
| Noise Level | <35 dB |
| Operating Temperature Range | -25 to 60 °C |
| Max. Operating Altitude | 3000 m |
| Permissible Ambient Humidity | 0-100 % |
| Thermal Protection | Yes |
| Cooling Type | Natural Cooling |








113 of 134 Deye inverter records state output derates from 45 °C, and 30 units are rated to 65 °C ambient. What that means on an August rooftop, and how shade and clearance change it.
Read: Do Solar Inverters Lose Power in Abu Dhabi's Summer Heat? →Every Deye inverter that publishes a derating point publishes 45 °C, so in Riyadh the row that decides your shortlist is the ambient ceiling — 60 °C on every hybrid, 65 °C on 30 models. Here is how to read it.
Read: Best Solar Inverter for a Riyadh Villa: What Happens Above 45 °C →Every Deye inverter is dust-tight — 122 records IP65, 12 IP67. So the dust cost is on the panel glass, not in the box. What an IP rating promises, and how MPPTs and string monitoring contain a dirty roof.
Read: Does Dust Ruin Solar Panels in Sharjah and Ajman? →Yes. The SUN-4.2K-G05P1-EU-AM2 is rated -25 to 60 °C, with derating above 45 °C, which covers the heat and dust of the Gulf, North Africa and the wider MEA region. Mount it in shade for the best summer output. Its IP 65 rating handles dust and humidity.
Dual MPPT trackers allow the inverter to independently optimize power from two separate strings of solar panels, maximizing energy output even with different orientations or partial shading.
The optional Anti-PID function helps prevent Potential Induced Degradation of solar panels, maintaining high efficiency over the system's lifespan.