12V Solar Panel · N-Type TopCon · 250W
250W of Compact, High-Efficiency Solar in a Storm-Tough Panel
The MEGA 250 pairs half-cut, 16-busbar N-Type TopCon cells with a reinforced 1.3mm aluminum frame — up to 25.1% efficiency in a footprint 10% smaller than standard 10BB 250W panels, built to withstand hail, wind, and snow.

What Sets the MEGA 250 Apart
Tough for Tougher Environments
- IP68-rated junction box and IP67-rated connectors for all-weather reliability
- Rated for 2,400 Pa wind loads and 5,400 Pa snow loads
- Impact-resistant against hail up to 35mm at 97 km/h
Built for Reliability
- Grade A+ cells for exceptional efficiency and long-term stability
- Each panel undergoes 30+ mechanical and electrical tests, including PID resistance and EL diagnostics
- N-Type TopCon cells with AR-coated glass sustain output in cloudy or low-light conditions
Compact at 25.1% Efficiency
- 10% smaller footprint than standard 10BB 250W panels — a better fit for tight RV, van, and trailer roofs
- Half-cut cells with a 16-busbar design reduce power loss and minimize hotspots
- Bypass diodes maintain stable performance in partial shade
Quick to Install
- Pre-drilled holes offer multiple mounting options for a fast setup
- Plug-and-play MC4 connectors with 3ft pre-attached cables
- 1.3mm-thick aluminum frame reinforced for strength and corrosion resistance
Available Finishes
- MEGA 250 (Silver frame)
- MEGA 250 ONYX (Black frame)

Full Specifications
Electrical
| Max. power (Pmax) | 250 W |
| Max-power voltage (Vmp) | 18.9 V |
| Max-power current (Imp) | 13.2 A |
| Open-circuit voltage (Voc) | 22.8 V |
| Short-circuit current (Isc) | 13.7 A |
| Max. system voltage (Vmax) | 1500 Vdc |
Physical
| Weight | 26.9 lbs |
| Dimensions | 60.6 × 29.9 × 1.2 in |
| Operating temp | -40°F to 185°F |
| Junction box | IP68 |
| Solar connectors | IP67, MC4 |
Where It Fits
Common Questions
How is the MEGA 250 more compact than other 250W panels?
Its half-cut, 16-busbar cell design and split-energy layout pack the same 250W output into a footprint about 10% smaller than standard 10BB 250W panels — a real advantage on tight RV, van, or trailer roofs.
Can it survive hail and severe weather?
It’s rated for 2,400 Pa wind loads and 5,400 Pa snow loads, and is impact-resistant against hail up to 35mm at 97 km/h.
Do I need an inverter if I only want to charge my battery?
No — an inverter isn’t needed just to charge a battery. You’ll only need one if you plan to run AC appliances like a TV or refrigerator directly off the battery.
How long will the panel last?
It carries a 25-year performance warranty: at least 95% of rated output after 5 years, 90% after 10 years, and 80% after 25 years.
What color options are available?
The MEGA 250 is available in Silver or Onyx (Black) finish.



















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