Rich Solar Mega 250 Monocrystalline Panel — Low-Light 250W Off-Grid Power
250W Monocrystalline Power for Your Off-Grid Build
- FREE System Design Consultation -- Our engineers size your array for your actual consumption
- FREE Shipping -- Ships free to your door, no minimum order
$239.99
Out of stock
In the box
- 250W monocrystalline solar panel
- Panel leads (pair), 3 ft each
- IP68 waterproof junction box with bypass diodes
250W Monocrystalline Power for Your Off-Grid Build
The Rich Solar MEGA 250 delivers 250 watts of monocrystalline output through a 16-busbar cell configuration that performs reliably even in low-light conditions — cloudy mornings, overcast afternoons, and short winter days. This weatherproof panel features an anodized aluminum frame and anti-reflective tempered glass, making it built-to-survive harsh conditions on cabins, RVs, boats, and homesteads. Pre-drilled mounting holes and IP67 quick-connect cables keep installation straightforward, whether you're wiring in series or parallel for your grid-independent system.
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16-Busbar Cells
Low-Light Output
Weatherproof Build
Pre-Drilled Mounting
250W
Rated Output
26.9 lbs
Panel Weight
25 Years
Output Warranty
Real Output When the Sky Is Not Cooperating
The grid-tied panel that clips on cloudy days and the marketplace import that degrades after one winter — those are the problems we built Off Grid Vault to avoid. We only carry panels we would mount on our own cabins. The Mega 250's 16-busbar monocrystalline cells are engineered for genuine low-light performance, not just peak ratings in lab conditions. At 26.9 lbs with an anodized aluminum frame rated from -40 to +185°F, this panel is field-tested for the conditions that actually matter: overcast mornings, winter afternoons, and the kind of weather that sends lesser panels into standby mode.
Mount Anywhere Without the Heavy Panel Struggle
At 26.9 lbs with a 60.6 x 29.9 x 1.2 in profile, the Mega 250 is manageable for solo installation on RV roofs, cabin mounts, and mobile setups. Pre-drilled holes accept Z brackets, ground mounts, pole mounts, and tilt mounts straight out of the box — no custom drilling required. The lightweight anodized aluminum frame resists corrosion without adding unnecessary weight, so you spend less time wrestling panels onto roofs and more time building your off-grid system. Industry standard quick-connect cables let you wire in series or parallel without proprietary adapters.
Anti-Reflective Glass That Pulls More Watts Per Square Inch
The AR coated tempered glass on the Mega 250 reduces surface reflection so more sunlight reaches the monocrystalline cells — not just at noon, but across the full arc of the day. Combined with the IP68 waterproof junction box and built-in bypass diodes, the panel maintains output even when partial shading hits one section. At 18.9V Vmp and 13.2A Imp, it pairs cleanly with both on-grid and off-grid inverters. The 25-year output warranty backs what the specs promise: this panel is built to produce for decades, not seasons.
Check Your Setup
Confirm these compatibility points before adding to your array.
- Mounting surface supports 26.9 lbs panel weight
- System voltage does not exceed 1500 VDC
- Charge controller input accepts 18.9V Vmp
Where It Works
Designed for permanent and mobile off-grid installs that demand reliable daily harvest.
Van & RV Roofs
Off-Grid Cabins
Marine & Boat Decks
Homestead Arrays
Full specifications
At a glance
- Dimensions
- 60.6 x 29.9 x 1.2 in
- Power
- 250W
- Surface
- Tempered Glass, Aluminum, Monocrystalline Silicon
- Warranty
- 25-year output warranty
Full specifications12 data points across 4 categories
Dimensions
| Dimensions | 60.6 x 29.9 x 1.2 in |
|---|---|
| Weight | 26.9 lbs |
| On Panel Cable Length | ~35 in |
Power & Performance
| Maximum Power(Pmax) | 250W |
|---|---|
| Maximum Power Voltage(Vmp) | 18.9V |
| Maximum Power Current(Imp) | 13.2A |
| Open Circuit Voltage(Voc) | 22.8V |
| Short Circuit Current(Isc) | 13.7A |
| Maximum System Voltage(Vmax) | 1500 VDC |
| Temperature Range | -40 ~ +185℉ |
Materials
| Material | Tempered Glass, Aluminum, Monocrystalline Silicon |
|---|
Compliance & Warranty
| Warranty | 25-year output warranty |
|---|
The Off Grid Vault Promise
Every panel we carry is vetted for real-world output and long-term reliability.
Free ShippingShips free to your door — no minimums, no freight surprises.
30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days.
Free System Design ConsultationOur engineers size your full system for your actual consumption — no guesswork, no incompatible components.
Frequently Asked Questions
One Mega 250 produces roughly 1–1.25 kWh per day depending on your location and sun hours. That runs a 12V fridge, charges communications equipment, or offsets lighting loads. For a full cabin system, most builders wire multiple panels in series or parallel to match their daily kWh consumption. The real value is in the build quality — at 26.9 lbs with a 25-year output warranty, this panel outlasts panels that cost less but degrade in three to five years.
Every panel we carry is one we would install on our own cabin. The Mega 250 ships with full manufacturer warranty support — we are an authorized dealer, so warranty claims go through us, not a ticket queue. You also get access to our free system design consultation: tell us your daily kWh consumption and we will help you determine exactly how many panels and what configuration your system requires. No guesswork, no incompatible components, no disappearing support after the box arrives.
The Mega 250 outputs 18.9V Vmp and 13.2A Imp, with a Voc of 22.8V and maximum system voltage of 1500 VDC. It is compatible with both on-grid and off-grid inverters. For series or parallel configurations, the industry standard quick-connect cables integrate with MPPT and PWM charge controllers. If you are unsure about voltage matching or string sizing for your specific setup, our free system design consultation covers exactly this — tell us your inverter and controller, and we will confirm compatibility before you buy.
The Mega 250 is certified to operate from -40 to +185°F, covering the temperature extremes you will encounter in desert Southwest summers and Midwest winters. The anodized aluminum frame resists corrosion, the AR coated tempered glass handles thermal cycling, and the IP68 waterproof junction box with built-in bypass diodes protects internal connections from moisture infiltration. This is not a seasonal panel — the 25-year output warranty reflects the manufacturer's confidence in long-term field performance under real environmental stress.
Yes. The Mega 250 uses industry standard quick-connect cables that work in both series and parallel configurations, so you can start with a single panel and expand your array as affordable allows. The 1500 VDC maximum system voltage gives you substantial headroom for string sizing as you add panels. If you plan a multi-phase build, take advantage of our free system design consultation upfront — we will map out the full architecture so every panel you add later fits cleanly into the existing setup.
The 25-year output warranty guarantees that the panel will maintain a specified percentage of its rated 250W output over the warranty period — this is a manufacturer-backed production guarantee, not a limited conditional warranty. As an authorized dealer, Off Grid Vault processes warranty claims directly on your behalf. If the panel underperforms its warranted output threshold, the claim goes through us — not through a third-party support queue. Keep your purchase record and we handle the rest.
The Off Grid Vault Promise
Every panel we carry is vetted for real-world output and long-term reliability.
Free Shipping
Ships free to your door — no minimums, no freight surprises.
30-Day Performance Guarantee
If it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days.
Free System Design Consultation
Our engineers size your full system for your actual consumption — no guesswork, no incompatible components.
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rich solar is a trusted manufacturer of premium rigid solar panels. OffGridVault is an authorized dealer offering the full rich solar lineup with free delivery, price match guarantee, and expert support.
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