OptiSolex

Your First Hassle-Free Solar System

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OptiSolex 440W Portable SolarBag Kit

Big power in a small package.

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OptiSolex 200W Mountable Solar Kit

Reliable power, built to last.

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OptiSolex SolexBrick S1

Easily expand your existing solar system.

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Pack Light, Power Big

<p>Lightweight</p>

Lightweight

17.2 lbs

↓50% Smaller & Lighter

<p><strong>25%</strong></p>

25%

Efficiency N-Type Cells Rated power: 440W

<p>Unzip into 2 Panels</p>

Unzip into 2 Panels

<p>Directly Charges RV Batteries with <strong>S1</strong></p>

Directly Charges RV Batteries with S1

<p>Mix & Match</p>

Mix & Match

Mix different brands, specs, types of panels freely

<p>Anti-Shadow Optimization</p>

Anti-Shadow Optimization

Shade one panel, the rest still shine

Power for Every Adventure

RVing & Roadtrips

RVing & Roadtrips

Van, Overland, Pick-up Truck

Camping & Outdoors

Camping & Outdoors

Hiking, Fishing, Boating, Picnics

Scene-Matched Products

<p>440W </p><p>Portable SolarBag Kit</p>

440W

Portable SolarBag Kit

Big power in a small package.

Learn More Shop Now
<p>200W </p><p>Mountable Solar Kit</p>

200W

Mountable Solar Kit

Reliable power, built to last.

Learn More Shop Now
<p>SolexBrick S1</p>

SolexBrick S1

Easily expand your existing solar system.

Learn More Shop Now

Power That Experts Trust

Woodswalker 1965

Woodswalker 1965

24.8K subscribers

Camping lover Woodswalker hits the trails of the Pacific Northwest with gear that keeps every mile powered. See how 440W of compact and portable solar fits into real overlanding adventures.

Grim Granite

Grim Granite

195K subscribers

Grim Granite heads into the wild, where every ounce of gear has to earn its place. That’s why he sets up the OptiSolex 440W SolarBag alongside the SolexBrick S1 to show just how simple off-grid power can be.

RVingWithJoe

RVingWithJoe

23.5K subscribers

Seasoned RVer with 22 years of road experience, RVing with Joe puts the OptiSolex 440W SolarBag and SolexBrick S1 to the test on real-world RV adventures. From long trips in the Ember Overland 191MSL to everyday off-grid scenarios, Joe shows how 400W of portable solar makes life on the road easier.

Real Stories from Real Users

Erik L.
★ ★ ★ ★ ★
Erik L.
390+W are you kidding me?! It’s a partly cloudy day and my panels are dusty... My dog has walked over them, they have paw prints, and it’s still delivering that kind of output. Simply incredible!
Leonid
★ ★ ★ ★ ★
Leonid
Hey the event and the solar panel were a success! The weather proved less than ideal .... The panel was still able to keep up with power demands for over 24 hours...
Jason B.
★ ★ ★ ★ ★
Jason B.
I was getting around 340w mid afternoon. I can already see this will be replacing other 400w panels for my RV, as the weight and size make it a superior choice despite the fact that it doesn’t have a stand. It’s also less susceptible to damage from wind. So far everything feels premium, and it seems like this team put some strong products out. This will be a permanent addition to my RV setup.
Tristan V.
★ ★ ★ ★ ★
Tristan V.
They are equal weight when split, and incredibly light. Fantastic weight for 200 watts. Comparing the watts, they were very close. Panel 1 = 186 W and Panel 2 = 192 W. Max on day 1 was 352 Watts in the Ecoflow very impressive... Not difficult at all, Very convenience.
Shaleaf
★ ★ ★ ★ ★
Shaleaf
This new solar panel that is amazing it has built-in power cords. With the S1 charge controller which has AI intelligence. I laid it out on my roof of my Toyota FJ Cruiser to get some extra power for my devices and it is so easy to deploy and fold up.
Eric
★ ★ ★ ★ ★
Eric
The SolarBag in the small little carrying case is tiny. I've used 100 Watt solar suitcase bags that are twice the size and way heavier, so we're talking about a small package that is super powerful here.
Geoffrey
★ ★ ★ ★ ★
Geoffrey
Unique and revolutionary features. When together, these products provide flexibility, durability and portability... It is easy to carry and it can be split into two panels, used in different locations.
Erik L.
★ ★ ★ ★ ★
Erik L.
390+W are you kidding me?! It’s a partly cloudy day and my panels are dusty... My dog has walked over them, they have paw prints, and it’s still delivering that kind of output. Simply incredible!
Leonid
★ ★ ★ ★ ★
Leonid
Hey the event and the solar panel were a success! The weather proved less than ideal .... The panel was still able to keep up with power demands for over 24 hours...
Jason B.
★ ★ ★ ★ ★
Jason B.
I was getting around 340w mid afternoon. I can already see this will be replacing other 400w panels for my RV, as the weight and size make it a superior choice despite the fact that it doesn’t have a stand. It’s also less susceptible to damage from wind. So far everything feels premium, and it seems like this team put some strong products out. This will be a permanent addition to my RV setup.
Tristan V.
★ ★ ★ ★ ★
Tristan V.
They are equal weight when split, and incredibly light. Fantastic weight for 200 watts. Comparing the watts, they were very close. Panel 1 = 186 W and Panel 2 = 192 W. Max on day 1 was 352 Watts in the Ecoflow very impressive... Not difficult at all, Very convenience.
Shaleaf
★ ★ ★ ★ ★
Shaleaf
This new solar panel that is amazing it has built-in power cords. With the S1 charge controller which has AI intelligence. I laid it out on my roof of my Toyota FJ Cruiser to get some extra power for my devices and it is so easy to deploy and fold up.
Eric
★ ★ ★ ★ ★
Eric
The SolarBag in the small little carrying case is tiny. I've used 100 Watt solar suitcase bags that are twice the size and way heavier, so we're talking about a small package that is super powerful here.
Geoffrey
★ ★ ★ ★ ★
Geoffrey
Unique and revolutionary features. When together, these products provide flexibility, durability and portability... It is easy to carry and it can be split into two panels, used in different locations.
Erik L.
★ ★ ★ ★ ★
Erik L.
390+W are you kidding me?! It’s a partly cloudy day and my panels are dusty... My dog has walked over them, they have paw prints, and it’s still delivering that kind of output. Simply incredible!
Leonid
★ ★ ★ ★ ★
Leonid
Hey the event and the solar panel were a success! The weather proved less than ideal .... The panel was still able to keep up with power demands for over 24 hours...
Jason B.
★ ★ ★ ★ ★
Jason B.
I was getting around 340w mid afternoon. I can already see this will be replacing other 400w panels for my RV, as the weight and size make it a superior choice despite the fact that it doesn’t have a stand. It’s also less susceptible to damage from wind. So far everything feels premium, and it seems like this team put some strong products out. This will be a permanent addition to my RV setup.
Tristan V.
★ ★ ★ ★ ★
Tristan V.
They are equal weight when split, and incredibly light. Fantastic weight for 200 watts. Comparing the watts, they were very close. Panel 1 = 186 W and Panel 2 = 192 W. Max on day 1 was 352 Watts in the Ecoflow very impressive... Not difficult at all, Very convenience.
Shaleaf
★ ★ ★ ★ ★
Shaleaf
This new solar panel that is amazing it has built-in power cords. With the S1 charge controller which has AI intelligence. I laid it out on my roof of my Toyota FJ Cruiser to get some extra power for my devices and it is so easy to deploy and fold up.
Eric
★ ★ ★ ★ ★
Eric
The SolarBag in the small little carrying case is tiny. I've used 100 Watt solar suitcase bags that are twice the size and way heavier, so we're talking about a small package that is super powerful here.
Geoffrey
★ ★ ★ ★ ★
Geoffrey
Unique and revolutionary features. When together, these products provide flexibility, durability and portability... It is easy to carry and it can be split into two panels, used in different locations.

Explore OptiSolex

Getting Started with the OptiSolex SolexBrick S1: From Setup to First Charge

Getting Started with the OptiSolex SolexBrick S1: From Setup to First Charge

Sep 8, 2025
LeoCollins
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Portable Solar Panels, Rigid Panels, and Flexible Panels: What Are the Pros and Cons?

Portable Solar Panels, Rigid Panels, and Flexible Panels: What Are the Pros and Cons?

Sep 7, 2025
LeoCollins
Read More
Quick Guide: How to Maximize Solar Panel Output with the OptiSolex 440W Portable SolarBag

Quick Guide: How to Maximize Solar Panel Output with the OptiSolex 440W Portable SolarBag

Sep 3, 2025
LeoCollins
Read More

OptiSolex exists to make solar power as easy as stacking building blocks.

At the core is our SolexBrick S1 - the world's first ultra-compact device that combines a solar optimizer and MPPT charge controller in one.

Quad-Channel design

Quad-Channel design

Its Quad-Channel design processes power more efficiently by handling four inputs in parallel, enabling the circuitry to be condensed into a rugged metal housing small enough to mount directly behind a solar panel.

InstantMax AI algorithm

InstantMax AI algorithm

Paired with our InstantMax AI algorithm, each S1 independently maximizes output from its own panel while coordinating seamlessly with other S1 units for smarter overall performance.

This dual innovation delivers three game-changing capabilities:

Mix & Match Panels

(Effortlessly combine different panel types and sizes)

Anti-Shadow Optimization

(Shade one, rest full power)

Plug-and-Play Expansion

(Add panels anytime - no rewiring)

Up to 10-Year Warranty

30-Day Return Policy

Lifetime Customer support

Free Shipping