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rich solar|SKU:RS-M250

Rich Solar Mega 250 Monocrystalline Panel — Low-Light 250W Off-Grid Power

250W Monocrystalline Power for Your Off-Grid Build

16-busbar cell design — Boosts efficiency in overcast conditions
Weighs just 26.9 lbs — Easy single-person handling and mounting
AR coated tempered glass — Maximizes energy transmission daily
Pre-drilled mounting holes — Fits Z brackets, ground, and pole mounts
IP68 waterproof junction box — Field-tested for harsh weather exposure
  • FREE System Design Consultation -- Our engineers size your array for your actual consumption
  • FREE Shipping -- Ships free to your door, no minimum order

$210.95

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Rich Solar Mega 250 Solar Panel (Silver)
Rich Solar Mega 250 Solar Panel (Silver)
$210.95

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In the box

  • 250W monocrystalline solar panel
  • Panel leads (pair), 3 ft each
  • IP68 waterproof junction box with bypass diodes
Rich Solar Mega 250 Solar Panel (Silver)
Rich Solar Mega 250 Monocrystalline Panel — Low-Light 250W Off-Grid Power
$210.95

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

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

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

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

Dimensions60.6 x 29.9 x 1.2 in
Weight26.9 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

MaterialTempered Glass, Aluminum, Monocrystalline Silicon

Compliance & Warranty

Warranty25-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.
★★★★★
“Mounted two of these on my cabin roof in series feeding into my charge controller. First morning was overcast and I was still pulling 180W — that low-light performance is real, not just a datasheet claim. At 26.9 lbs I handled installation solo. Off Grid Vault confirmed my string configuration before I ordered, which gave me confidence this would actually work with my setup.”
F
First L.Prescott, AZ

Rich Solar Mega 250 Solar Panel

​The Rich Solar MEGA 250 is a high-performance 250-watt monocrystalline solar panel designed for off-grid applications such as RVs, vans, boats, and cabins. Its 16-busbar solar cell configuration enhances efficiency, while the lightweight anodized aluminum frame and anti-reflective tempered glass ensure durability and optimal energy transmission. The panel excels in low-light conditions, providing reliable power during cloudy days, mornings, and evenings.

Installation is straightforward, with pre-drilled holes compatible with various mounting options, including ground mounts, Z brackets, pole mounts, and tilt mounts. The MEGA 250 is built to withstand challenging environmental conditions and comes with a 25-year output warranty, ensuring long-term performance and reliability.

Built-in Components: 250 watt 12 volt solar panel, Panel leads (pair): 3 feet each, IP68 rated waterproof junction box, IP67 rated waterproof solar connectors, Bypass diodes built into the junction box


Rich Solar Mega 250 Pro

Rich Solar Mega 250 Specs

  • 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℉
  • Weight: 26.9 lbs
  • Dimensions: 60.6 x 29.9 x 1.2 in
  • Material: Tempered Glass, Aluminum, Monocrystalline Silicon
  • On Panel Cable Length: ~35 in


Rich Solar Mega 250 Features

  • 16-busbar solar cell configuration
  • Lightweight anodized aluminum frame
  • High Transmission, AR (anti-reflective) Coated Tempered Glass
  • Compatible with on-grid and off-grid inverters
  • Plug and play junction box
  • Industry standard quick-connect cables work in series or parallel
  • Certified to withstand challenging environmental conditions
  • Excellent low-light performance on cloudy days, mornings and evenings
  • Easy installation and handling for various applications (high-end off-grid and mobile applications)
  • Pre-drilled holes compatible with ground mounts, Z brackets, pole mounts and tilt mounts


Your Satisfaction with Rich Solar is Guaranteed:

  • 10-Year Limited Warranty
  • Lowest Price Guarantee

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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.
SKU: RS-M250 Category: Brand:

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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About rich solar Rigid Solar Panels

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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