RICH SOLAR MEGA 400 | 400W Solar Panel for Grid-tie or Off-grid Use | Residential, Commercial, Agriculture | 25-Year Warranty | UL Certified

Name: RICH SOLAR MEGA 400 | 400W Solar Panel for Grid-tie or Off-grid Use | Residential, Commercial, Agriculture | 25-Year Warranty | UL Certified
Brand: RICH SOLAR
SKU: RS-M400-8
Price: 2699.99 USD
Availability: InStock

BY: RICH SOLAR

SKU: RS-M400-8

| Availability: In stock

$4,050.00

$2,699.99

You Save: $1,350.01

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Product Highlights

Built for off-grid power, RV travel, and marine systems
400 W solar output for larger off-grid energy systems
Weather-resistant construction supports demanding outdoor installations
Built-in electrical protections help safeguard connected equipment

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RICH SOLAR MEGA 400 | 400 Watt Solar Panel | Premium Grid-tie or Off-grid Solar Panel for Residential, Commercial, Agriculture | 25-Year Output Warranty | UL Certified

The RICH SOLAR MEGA 400 is a high-efficiency 400W solar panel built for both off-grid and grid-tied applications. Designed for residential, commercial, and agricultural use, this premium panel delivers superior output and long-term durability with a 25-year power output warranty. Whether you're upgrading your rooftop array or building a large-scale energy project, this UL Certified panel offers the performance and reliability you can count on.

RICH SOLAR MEGA 400 | 400 Watt Solar Panel Features

High Output Efficiency

Designed with advanced mono PERC cells to produce up to 400 watts of power—ideal for maximizing production in limited space.

UL Certified & Safe

UL 61730 Certified for electrical and fire safety—meets rigorous U.S. standards for residential and commercial solar systems.

Weatherproof Durability

Built to withstand harsh environments—IP68 junction box, 5400 Pa snow load, and 2400 Pa wind load ratings.

Anti-Reflective Tempered Glass

Low-iron, high-transparency glass reduces surface reflection—allowing more sunlight absorption and boosting daily output.

Aluminum Alloy Frame

Corrosion-resistant anodized aluminum frame—ensures long-term structural support and simplified mounting.

Wide Compatibility

Compatible with 12V/24V battery systems and inverters—perfect for RV, home, farm, and industrial use.

RICH SOLAR MEGA 400 | 400 Watt Solar Panel Applications

Residential Solar Systems – Power your home with renewable energy while reducing utility bills.
Commercial Installations – Reliable performance for schools, offices, and retail buildings.
Agricultural Operations – Efficiently run irrigation systems, lighting, and equipment in remote locations.
Off-Grid Cabins & Homes – Dependable energy source for off-grid living or remote cabins.
RV & Marine Use – Great for mobile energy needs, including vans, RVs, and boats.
Battery Charging Systems – Pairs well with battery storage for emergency backup power.

What's Included

Everything you need is included with your product.

RICH SOLAR MEGA 400 Watt Solar Panel

User Manual

RICH SOLAR MEGA 400 | 400 Watt Solar Panel Specifications

Category	Specifications
Maximum Power (Pmax)	400W
Maximum Power Voltage (Vmp)	30.9V
Maximum Power Current (Imp)	12.9A
Open Circuit Voltage (Voc)	37.1V
Short Circuit Current (Isc)	13.7A
Maximum System Voltage (Vmax)	1500VDC
Temperature Range	-40°F ~ 185°F
Dimensions:	67.9 × 44.6 × 1.2 in
Weight	49.4 lb

Frequently-Asked Questions

Is this panel compatible with 12V battery systems?

Yes. While it’s a 24V-rated panel, it can be used with 12V systems through an MPPT charge controller.

Can I mount this panel on my RV or van roof?

Yes. The panel’s durable frame and standard size make it suitable for RV, van, and marine roof mounting with proper brackets.

Does this come with mounting hardware?

No. Mounting brackets are not included and must be purchased separately.

Is it safe to use in extreme weather?

Yes. It’s certified to withstand wind loads of up to 2400 Pa and snow loads up to 5400 Pa, making it ideal for all climates.

Shipping & Easy Returns

Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.

Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.

Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

Why Buy From Us

Buying solar online should not mean guessing your way through the install. Here’s what you get with Off-Grid Source.

We size the system, not just sell it. Call before you order and a sales engineer will check the kit against your actual loads, tell you if you’re buying too much or too little, and list the site-specific parts your install will need.
A+ rated by the Better Business Bureau. Another trust signal that you’re buying from a real company that stands behind the sale.
Free shipping across the Lower 48. No hidden freight charges, residential fees, or liftgate surprises at checkout.
Guaranteed best prices. Find the same product for less elsewhere and we’ll match it.
30-day easy returns. If it is not the right fit, we’ll help you get it sent back.
A real person on the phone. Product questions, sizing, install planning, warranty help: call us at +1 (877) 556-3347.

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30-DAYS EASY RETURNS

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Call Us: (+1) 877-556-3347

Our Customers Tell It Better Than We Do

Excellent 4.9/5

Trusted By 10,000+ Customers. See All Reviews.

They Stood By Me

I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

Bruce D.

Awesome Service!

I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.

Jennene A.

Real Person, Honest Service.

I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.

Ray B.

Easy Return

I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

Roger V.

Totally Off Grid.

I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.

Jeff S.

Great Product! Fast Shipping

We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!

Jason

Excellent Customer Service

Very fast response times. Very professional. I highly recommend!

Ray W.