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Model #GS-400-KIT-BT

400-Watt Off-Grid Solar Panel Kit

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Product Overview

Get the ability to run small pumps or lights with this Grape Solar Off-Grid Solar Panel Kit. The kit Includes: 2-piece Grape Solar GS-Star-200W 200-Watt monocrystalline solar panels, a 40 Amp Grape Solar Comet charge controller, cables and manual. Use this kit for RVs, boats, 12-Volt battery charging or charging small electronic devices. The panels are constructed of anodized aluminum frame with a sealed junction box making it great for outdoor use. When in use, this system provides 1200-Watt hours or 100 Amp hours of charge per day. Made with high efficiency crystalline solar cells for years of service, this solar kit is easy to install and virtually maintenance free.
  • Runs loads like mini fridge, 1/2 HP pumps, TV, small power tools
  • Compatible with deep cycle batteries including lithium-ion (battery not included)
  • Can be expanded with 1 additional 200-Watt panel
  • Ideal for running small pumps and lights or charging your portable electronic devices
  • Monocrystalline panel with anodized aluminum frames and tempered glass for outdoor use and superior performance
  • Panel's bypass diodes reduce shade losses in series strings
  • 40 Amp Grape Solar comet PWM charge controller allows you to add up to 1 more panel with additional cables (use part GS-200-EXP)


  • Solar Energy Components

  • Kit comes with all cables and connectors for quick and easy set-up
  • Battery not included, a minimum of one 12-Volt deep cycle battery is necessary to use this kit
  • Click here to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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BrandWindyNationGrape SolarWindyNationRenogy
Name100-Watt Off-Grid Polycrystalline Solar Panel Kit with 1500-Watt VertaMax Power Inverter400-Watt Off-Grid Solar Panel Kit400-Watt Off-Grid Polycrystalline Solar Panel Kit with LCD Charge Controller400-Watt 12-Volt Monocrystalline Solar Starter Kit for Off-Grid Solar System
Price
Ratings
(13)
(38)
(10)
(56)
Wattage (watts)100 W400100 W400
ApplicationBoat,Cabin,Camping,RV,Shed,VehicleBoat,Cabin,RV,Shed,VehicleBoat,Cabin,Camping,RV,ShedBack-Up Power,Cabin,Camping,Hiking
IncludedCharge controller,Electrical wire,Inverter,Mounting hardwareCharge controllerCharge controller,Electrical wire,Mounting hardwareCharge controller,Electrical wire,Mounting hardware
FeaturesOutdoor,WeatherproofPortable,WeatherproofWeatherproofIndoor/Outdoor
Solar panel typePolycrystallineMonocrystallinePolycrystallineMonocrystalline
Panel weight (lb.)2226.517.616.5
Panel length (in.)2961.4226.419.6
View ProductView ProductView ProductView Product

Specifications

Dimensions

Panel Height (in.)
1.38 in
Panel length (in.)
61.42
Panel Width (in.)
28.15 in

Details

Amperage (amps)
10.33
Application
Boat,Cabin,RV,Shed,Vehicle
Features
Portable,Weatherproof
Included
Charge controller
Indoor/Outdoor
Outdoor
Number of Panels
2
Panel Material
Monocrystalline Silicon
Panel weight (lb.)
26.5
Returnable
90-Day
Solar panel type
Monocrystalline
Voltage (v)
20 v
Voltage (volts)
24.35
Wattage (watts)
400

Warranty / Certifications

Manufacturer Warranty
Refer to the manufacturer's website

Questions & Answers

190Questions14Answers

What would be needed for this kit to be able to power a treadmill and small floor (portable) A/C ...

Asked by Kwest10 February 10, 2021
2
Answers

This unit can barely power a toaster with full sun in southwest desert conditions. You will need a lot of panels and a large battery reserve. This unit as it stands could power a fan and a laptop.

Can I use 3 or 4 of those 15' extensions? RV sits in the shade trees. Would like to put the panel...

Asked by Am February 10, 2021
1
Answer

Adding any extension cables to this 400W system will lead to significant voltage drop. Please reach out to support@grapesolar.com for assistance in designing your system.

How long are the provided cables?

Asked by Cws December 31, 2020
2
Answers

This kit includes two 15ft cables, one for positive and one for negative connections.

Can I use this kit to expand my 200 watt system? Do I need any other devices?

Asked by Tim December 24, 2020
1
Answer

The 400W kit is not an "expansion kit". Please reach out to support@grapesolar.com for assistance in designing your system.

Can I get a mppt controller instead of pwm And what price

Asked by Jack September 20, 2020
1
Answer

For a 400W kit with an MPPT controller, please email Grape Solar at quotes@grapesolar.com.

Should the positive cable from the panel to the controller be fused. If so what is recommended?

Asked by BBG August 6, 2020
2
Answers

It comes with an inline fuse so your covered alreay just pay attention on install and yes it goes on the positive

Can I book multiple 400watt systems to one battery bank?

Asked by Jeff August 1, 2020
1
Answer

The Comet 40 charge controller that comes with the 400-Watt kit is not designed to work with multiple charge controllers on the same battery bank. For assistance in sizing a solar panel system, don't hesitate to contact Grape Solar at info@grapesolar.com.

Will two 170 watt solar panels charge three 100 ah batteries with no problem.? I have a small fri...

Asked by Rocky July 13, 2020
1
Answer

This kit includes four 100-Watt panels. It is unlikely this kit can provide enough power to run your small fridge and lights. Reach out to info@grapesolar.com for assistance in sizing a kit for your system.

Can this kit be wired as a 24v system as well?

Asked by Xamol May 17, 2020
2
Answers

This system can be reconfigured to work on a 24V battery bank. Reach out to support@grapesolar.com for assistance in panel arrangement.

What inverter should be used?

Asked by JoeF March 24, 2020
1
Answer

This is largely dependent on the load you are running. Contact support@grapesolar.com for more specific information.

400-Watt Off-Grid Solar Panel Kit - page 2

Customer Reviews

  • 4.4
    out of 38 reviews
  • 86% recommend this product
Filter by:
Showing 1-10 of 38 reviews
Very easy installation instructions. Recommend marking positive and negative cables from the sola...
Very easy installation instructions. Recommend marking positive and negative cables from the solar panels, four panels get a little confusing to hook together. Other than that excellent.
by BBG
2 people found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Out put of the panels was as expected and they're ease of setup was not difficult.
Out put of the panels was as expected and they're ease of setup was not difficult.
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
The USB does work on the side of the box...
The USB does work on the side of the box
by HomeDepotCustomer
This kit was easy to put together. The voltage it...
This kit was easy to put together. The voltage it puts it out is more than enough to power the lake fountain and lights I bought it to operate. The only thing the kit didn’t include was a battery to charge to run the power when the sun wasn’t shining. However, I bought a battery for the kit and it was easy to attach to the kit. Now, the kit will easily run my lake fountain and it’s lights all day and all night long!
by Marine0326
They work great i was surprised actually on how well...
They work great i was surprised actually on how well they did i will be getting more soon
by maggs
We love our Grape Solar kit !...
We love our Grape Solar kit !
by Netlund
Perfect for charging RV batteries I have recommended these to...
Perfect for charging RV batteries I have recommended these to my RV friends very useful
by KIM
Not bad I wish it had a night light on...
Not bad I wish it had a night light on charge controler and a on and off button but works well panels are nicely built, good buy for small applications .
by Chris
Showing 1-10 of 38 reviews