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₦391,000.00
SMK Solar 4.2KW Hybrid Inverter – The Sweet Spot for Nigerian Homes & Small Offices
Not too small. Not too big. Just right. The SMK Solar 4.2KW Hybrid Inverter (120A, 60VDC–500VDC) at Kara Nigeria Online Shop is the perfect middle ground — more power than 3.5KW, more affordable than 5.5KW. Run your 1.5HP or 2HP air conditioner, deep freezer, large fridge, multiple TVs, fans, laptops, and a water pump — all at the same time. This is the inverter most Nigerian families actually need.
| Features & Benefits | |
| 4.2KW (4,200W) pure sine wave output | Powers larger homes with confidence — run a 2HP AC, deep freezer, fridge, TVs, fans, water pump, and lighting all at once. No more switching off appliances. |
| 120A built-in MPPT charge controller | Charges your battery bank 20% faster than 100A models — more solar harvesting means less grid/generator dependence, even on cloudy days. |
| Hybrid operation (solar + grid + generator) | Smart priority system uses free solar first, then grid, then battery or generator — maximum savings on electricity and fuel. |
| Wide PV input: 60VDC – 500VDC | Flexible high-voltage solar panel configurations — use fewer panels, higher efficiency, lower cable costs, and safer installation. |
| 48V battery system (industry standard) | Highly efficient — lower current means thinner cables, less heat, and longer component life. Easily find compatible batteries anywhere in Nigeria. |
| Parallel capable (up to 6 units) | Start with 4.2KW today. Add another SMK 4.2KW later for 8.4KW, 12.6KW, or even 25.2KW — grows with your business or home expansion. |
| LCD display with real-time data | Monitor solar input (W), battery voltage/capacity (%), load percentage (%), input/output voltage, and error codes — easy to understand. |
| Generator auto-start (dry contact) | Automatically triggers your generator when batteries run low — seamless transition, saves fuel, no manual intervention. |
| Battery-less operation possible | Run directly from solar panels during daytime — perfect for shops, clinics, workshops, or daytime-only businesses. |
| Adjustable charging current (0–120A) | Works with any battery type — lead-acid, gel, AGM, lithium, LiFePO4. Fine-tune to your specific battery's needs. |
| Wide AC input range (170–280VAC) | Works even during severe brownouts — accepts wider voltage range than standard inverters. Built for Nigerian power grid reality. |
| Overload, over-temperature, short-circuit protection | Multi-layer protection automatically shuts down safely if issues arise — protects your expensive appliances and inverter. |
| Smart temperature-controlled fan | Fan runs only when needed — whisper-quiet at night. Keeps inverter cool during hot Nigerian afternoons without annoying noise. |
| Appliances it can Run | ||
| Air conditioner (1HP) | Yes | With everything else running |
| Air conditioner (1.5HP) | Yes | With fridge + freezer + TVs + fans |
| Air conditioner (2HP) | Yes | With lights + fans + TV + fridge |
| Refrigerator (large, 2-door) | Yes | |
| Chest freezer (large) | Yes | |
| Deep freezer (commercial size) | Yes | |
| LED TVs (3–4 units) | Yes | |
| Ceiling/standing fans (6–8 units) | Yes | |
| Water pump (1HP – 1.5HP) | Yes | |
| Microwave oven | Yes | With other loads running |
| Electric kettle | Yes | Short use only |
| Washing machine | Yes | |
| Desktop computers (3–4 units) | Yes | |
| Laptops (multiple) | Yes | |
| Pressing iron | Yes | With other lighter loads |
| Electric cooker (small hot plate) | With caution | Use alone or with minimal loads |
The SMK 2.5KW and 3.5KW are great. But if you have a 2HP air conditioner, a large deep freezer, a water pump, and a family of 5 or more — you need the SMK Solar 4.2KW Hybrid Inverter. It's the sweet spot: enough power for everything, without paying for 5.5KW you might not need. Smart capacity. Smart price. Smarter solar.