DOKIO 400 Watt Solar Panels 10BB 12/24 Volt Solar Panel kit High Efficiency for Rooftop Portable Power Station Farm Yacht RV Camping and Other Off-Grid Applications（400w）…
Condition: Used - Like New
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 1 left in stock, order soon!
Arrives
Oct 3 – Oct 5
Size: 400w
Features
- High-quality materialsExtra long 3m cable.Corrosion resistant aluminum material can withstand the changing outdoor environment and prolong its service life.
- ApplicationSuitable for Caravan, RV, Golf car, Electric car, Yacht, Boat, Tent or backpack ect. It is the best choice for home energy investment.
- sturdy and reliable It can withstand strong winds and Snow loads.IP65 Rated Waterproof Junction Box can isolate environmental particles and low-pressure water jets.
- Installation FriendlyEach solar panel has specially designed pre-drilled holes for easy installation. It can fully meet the installation needs of various applications.
- 15-Year Tech Support As a professional solar system manufacturer, We promise an extra-long transferable power output warranty of 15 years. Whenever you encounter any problems, DOKIO Solar Panels Service will actively provide you with professional solutions.
Brand: DOKIO
Material: Aluminum,Tempered Glass,Iron
Product Dimensions: 67.8"L x 44.65"W x 1.18"H
Efficiency: High Efficiency
Connector Type: MC4
Brand: DOKIO
Material: Aluminum,Tempered Glass,Iron
Product Dimensions: 67.8"L x 44.65"W x 1.18"H
Efficiency: High Efficiency
Connector Type: MC4
Included Components: Bag
Maximum Voltage: 12 Volts
Maximum Power: 400 Watts
Manufacturer: DOKIO
Item Weight: 48.9 pounds
Item model number: DSP400M
Size: 400w
Shape: Rctangular
Batteries Included?: No
Batteries Required?: No
Date First Available: December 22, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 3 – Oct 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 400w
This $270 solar panel has replaced my $500 gas generator when I camp. Using the gas generator costs me about $30 a day in gas. This solar panel will have paid for itself in 9 days!!! No more smelly, expensive and noisy generator interrupting nature and my camp!! No more getting up at 2AM because the generator is out of gas. Lying flat, it produces 10-13 amps an hour for at least 6 hours per day, plenty for a small camper. Plenty more electric is produced throughout the days hours as well. Easy to use, being my first large solar panel, I was worried about correct installation. From opening the packaging to hooking it up to the charge controller took me about 10 minutes. One last benefit- it is large enough to cover a substantial part of my camper roof and it gives me shade and a cooler camper. Easy, cheap, powerful solar panel!!!
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Reviewed in the United States on July 6, 2025 by Jeff J
Size: 400w
Update: I repaired an mca connection and the panel started to work. It was producing 9 amps so I decided to keep it. Put it on the roof and now it’s producing 15 amps in direct sunlight. I am impressed. Purchased to renogy 200 watt flux panels and this is producing almost double the power. I upgraded to 5 stars because of the price difference. I will see how long this thing last though. Update: Amazon returned three and sent out one replacement. I was extremely happy that the replacement produced 9 amps, which is still underperforming of what the stated specs were. But, I thought maybe the first set were part of a bad batch. Not even a week later the new one has failed. I talked to several companies about this issue to understand better what could cause this issue. One of the companies I spoke with was Renogy and I decided to try them out. If their panels fail then it’s something with my equipment. If they don’t fail, then, these companies selling solar panels should be investigated. I will update any new information on this situation. I ordered two panels previously to ordering one from this company. The first worked but only produced about 140 watts of power. I was going to keep it because of the price even though it was a pain to get up on the roof. The third came in and didn’t produce any amperage. Yes, I know to switch my leads over on a multimeter. After this, I immediately tested the second only to discover it as well didn’t produce any amperage. I contacted Amazon for their number on file and it wasn’t in service. I have no choice but to repackage all of them and send these back.
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Reviewed in the United States on June 23, 2025 by Thistime
Size: 400w*2
I’m giving it a 4 star because of the shipping and delivery people that they utilize. I ordered 2 panels and decided to get an additional pair a couple day later. The first set arrived and were in awesome shape the second set arrived a couple days later with a different shipping company. They were shattered. I did receive a refund and reordered still yet a 3rd set. They weren’t even taken off the truck and the driver noticed that they were also shattered! I will be trying a 4th time. The original set I received are in excellent shape and functioning as they should.
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Reviewed in the United States on March 30, 2025 by Elizabeth Johns
Size: 400w*2
Product is ok but seller is awful. One of the two panels.does not work . I messaged amazon and the seller about this. Seller said they would send a single replacement panel. I took photo of the faulty panel and sent to them as requested. Seller then stated a replacement was ordered and they would provide tracking info as soon as it was available. A few days went by with nothing so I message again seller apologize and said it was ordered and tracking would be provided when available. Few more days went by then nothing, seller ignored all communication. Amazon initiated a return but being a 2 pack they scheduled both to be returned. One is mounted on the roof and in use. Amazon won't return just 1
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Reviewed in the United States on May 4, 2025 by doug howarth
Size: 400w*2
These are absolutely THE BEST I’VE FOUND ANYWHERE! I’ve purchased (2) 400w panels two different orders DOKIO since January and I ABSOLUTELY LOVE THEIR PRODUCT! These are definitely the highest output I’ve found yet. 400w gets you 250-350w! That’s astounding as I’ve had other manufacturers panels which are 200w combined which get me an output if 50w, which is absolutely terrible, the problem is at different months of the year the sun hits different regions in different ways/intensity thus creating different conditions and charging outcomes however DOKIO definitely delivers as I’ve tested them against another well known brand which starts with an “R” and they definitely out perform that brand, to be absolutely fair the wattage of the other brand was definitely a lower rated panel however 100w getting you 25w doesn’t sit well with me. I’ll never purchase anything other than DOKIO again for my solar needs. Exceptional brand and product.
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Reviewed in the United States on February 27, 2025 by Symbols Of Love
Nice product, the plastic casting is sub par so it took modification to make all the pieces fit together, the carrying bag was damaged out of the box (strap ripped off) those teo things are the reason for 3 stars, but once assembled the quality seems nice, the panels are thin so they will seem flimsy-ish but still good quality, was getting over 150w per 200w array so im happy. Like i said they arent perfect, but once you get them setup they are pretty decent. Be warned the tripod is small so windy situations will not be your friend!
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Reviewed in the United States on June 2, 2025 by Daniel Daniel
Size: 400w
Purchased 2 of these now. Have them in parallel but will run in series when I get a more powerful inverter. I'm getting 550 watts out of the pair with less than ideal (extremely long cabling) at the lower 36vdc level. Once I shorten the cabling and put in series I'm certain these will crank out full power. They are are big and somewhat heavy but would rather have less panels and the wiring that comes with that. Neither we damaged in transit and feel they are a good value.
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Reviewed in the United States on May 14, 2025 by JJ