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Grape Solar 50W Off-Grid Solar Panel Kit, GS-50-KIT

SKU: 120455399
Grape Solar 50W Off-Grid Solar Panel Kit, GS-50-KIT
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Product Rating is 4.8


510 north marketplace blvd
lansing, MI 48917
(517) 627-2179
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Item Information

50-Watt Off-Grid Solar Panel Kit

  • Runs small loads like fans, lights, gate openers, electric fences
  • 17 load control timer settings with DC terminal and 2 USB outputs
  • Can be expanded with 2 additional 50W panels
The Grape Solar 50-Watt Basic Off-Grid Solar Panel Kit is ideal for a variety of DC applications, including RVs, boats, 12-Volt battery charging and LED lights. Made with high-efficiency crystalline solar cells for years of service, this solar kit is easy to install and virtually maintenance free. An anodized aluminum frame and a sealed junction box make the panel weatherproof for outdoor use. This system will provide approximately 150-Watt Hours or 12.5 Amp Hours of charge per average day. The kit includes: 1-Piece Grape Solar GS-Star 50-Watt polycrystalline solar panel, a 165-Watt Grape Solar PWM charge controller with USB outputs and DC load control, cables and manual.

Specification Description
Country of Origin: Imported
Display Type: LCD
Compatibility: GS-50-EXP
Output Current: 3.75 - 11.25 A
Product Weight: 13 lb.
Warranty: Panel- 5 year limited product warranty on materials and workmanship. 25 year warranty on greater than 80% power output and 10 year warranty on greater than 90% power output. Charge Controller- 1-year limited workmanship warranty
Application/Use: Charging deep cycle batteries
Power Type: 12 Volt, Solar
Brand: Grape Solar
Product Height: 1.37 in.
Input Voltage: 12 VDC
Product Length: 26.18 in.
Output Voltage: 12 - 15 VDC
Product Width: 24.4 in.
Part Number: GS-50-KIT
Package Quantity: 2
Special Feature(s): N/A
Material: Polycrystalline solar panel, charge controller, cables
Operating Temperature Range: Minus 25 C to plus 55 C
Manufacturer Part Number GS-50-KIT
Grape Solar 50W Off-Grid Solar Panel Kit, GS-50-KIT is rated 4.8 out of 5 by 13.
Rated 5 out of 5 by from Awesome Kit Perfect for what I need living in the country and needing power to our coop. It would be to costly to run wire to the coop.
Date published: 2020-04-08
Rated 5 out of 5 by from Good product Have had the panel kit for a couple of weeks works well for my use.. LED lighting .. phone charger and such..
Date published: 2019-07-10
Rated 4 out of 5 by from Works well Have it set up to power my lights in my barn and it works incredibly
Date published: 2019-02-11
Rated 5 out of 5 by from Nicely powerful Has more power than my first one. Will keep my trolling batteries nicely charged
Date published: 2018-09-18
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I am in need of an outside power source for my pig hut. I do not have an outside power source. I will need to be able to plug a small heater or fan (depending on weather) into the unit. Can I use this for this purpose? If not can you please help me find w

Asked by: MMKA
This kit is not recommended for a heater. Solar production is lowest in the winter, and heaters (even small ones) require very large amounts of power. To find a good system size based on your kWh requirements, you can use the National Renewable Energy Laboratory's PV Watts Calculator found at For the calculator, the 50 watt kit is 0.05 kW DC.
Answered by: Grape Solar Expert
Date published: 2019-05-09

will this be enough to power a laptop, a stereo turntable and one lamp?

Asked by: chrbc7
It is difficult to estimate without knowing the wattage of each device and the number of hours per day you want to run them. You can expect to produce around 150 watt-hours per day with a single 50W solar panel. Feel free to get in touch with Grape Solar for help with calculating your watt-hour load, and optimum battery or system sizing.
Answered by: Grape Solar Expert
Date published: 2018-02-19

I have a 12 volt 50 AH battery powering a security camera. Will this kit keep the battery charged?

Asked by: Bryanste
We would need to know your location and the wattage draw of the camera to answer this definitively. A 50 watt panel produces approx. 12.5 amp-hours per day (150 watt-hours), assuming ideal panel placement (more in summer, less in winter).
Answered by: Grape Solar Expert
Date published: 2018-04-16

Is the controller weather proof?  Wires too ?  I will us this on my trailer and it will be out in the weather

Asked by: Dan Watkins
The cables and connectors are waterproof, the controller is not. It must be protected from the weather by a structure or weatherized container (NEMA 3R or better).
Answered by: Grape Solar Expert
Date published: 2020-06-01

how do I connect an outlet just to plug in a 56volt battery charger to charge the battery I use for my garden tools??

Asked by: tommy V
You can't do that with this kit, you would need a kit with an inverter such as the 300, or 400 watt kits. You could also use this kit, and purchase a small pure sine wave inverter separately. You must also have a separate deep cycle battery - you charge the battery with the solar kit, and use the inverter to run the battery charger. This is not an efficient use of solar, and is not generally recommended, since you are going from DC to AC to DC again.
Answered by: Grape Solar Expert
Date published: 2017-08-25

Is this kit strong enough to charge a 12v marine battery that is hooked up to an electric fence energizer. It would be covered out of the weather. I am looking to hook both solar panel and fence energizer to the 12v marine battery.

Asked by: mtgal
Yes, this kit is designed to charge 12 volt deep cycle batteries. Just make sure the controller is covered and protected from the weather, preferably in a NEMA-4 or better rated container.
Answered by: Grape Solar Expert
Date published: 2020-05-25

I have a travel trailer that is pre wired for ZAMP solar panel a plug on the outside from what I can tell the wires are there but previous owner took the panel and controller will this work wit what I have?

Asked by: Jt Fudd
Great question. ZAMP uses a proprietary port/ connector system. Our solar panels use the industry-standard MC4 port/connector system. In order to connect the Grape Solar panel to the pre-wired Zamp port, you would need to modify an adapter.
Answered by: Grape Solar Expert
Date published: 2019-04-29

50w cant possably put out 40 amps.. is it a misprit..or more like 4 amps ..nothing states any amps on any of the panals..i only need the panal. My controller is good up to 10 amps on a ney artic fox current panal is 20w an mabe 1.1amps ..

Asked by: 1bakercustom
This was a typo and has been corrected, thank you. The estimated output amperage ranges from 3.75 amps (one 50-W panel) to 11.25 amps (three 50W panels).
Answered by: Grape Solar Expert
Date published: 2019-08-24
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