DOKIO Monocrystalline Solar Panel Size 800W (2×400W) 31V for 12/24V Devices, Aluminum Frame, 3m Cable, Pre-Drilled Holes for Yard, Garden, Shed, Off-Grid Power
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Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Jul 20
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Set name: 400W*2
Features
- [800W CAPACITY] Two 400W panels deliver 800W (STC)size your controller/inverter for the combined current; MPPT strongly recommended.
- [PARALLEL FIRST ON 12V] Prioritize parallel on 12 V for safer voltage and steadier charging; series only when your controller supports higher input voltage.
- [3 m LEADS PER PANEL] 3 m MC4 leads on each panel enable longer reaches without immediate extensionsfewer added connectors, simpler runs.
- [LESS HARDWARE THAN 8100W] Compared with eight 100W panels, youll have far fewer joints/branch connectors, reducing failure points and time on the roof.
- [BUILT FOR OUTDOORS] Tempered glass + aluminum frame with sealed junction boxes for year-round yard/garden installations.
Description
Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store For over 17 years, DOKIO has been dedicated to reliable solar solutions for outdoor enthusiasts. Our experienced R&D team and cutting-edge technology mean you get lighter, more powerful, and longer-lasting solar gear—designed to keep your adventures powered anywhere. We’re committed to making your outdoor life easier, greener, and hassle-free, backed by our proven expertise and global customers’ trust.
Brand: DOKIO
Material: Aluminum, Monocrystalline Silicon, Tempered Glass
Product Dimensions: 44.6"L x 2.4"W x 67.8"H
Efficiency: High Efficiency
Included Components: Bag
Efficiency: High Efficiency
Maximum Power: 800 Watts
Output Voltage: 31 Volts
Item Dimensions L x W x H: 44.6"L x 2.4"W x 67.8"H
Material Type: Aluminum, Monocrystalline Silicon, Tempered Glass
Brand Name: DOKIO
Included Components: Bag
Model Number: DSP-400M-2PCS
Manufacturer: DOKIO
Item Type Name: solarpanel
Unit Count: 1.0 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jul 20
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
Set name: 400W
Works great. Easy to use. I have it connected to Ecoflow Delat 3 Classic to power garage appliances. Very good product.
Reviewed in the United States on May 26, 2026 by James Hubert
The original 100 Watt solar panels have a lighter frame and are therefore lighter in weight than the heavier framed Renogy 100 Watt panels that look and perform virtually the same. I used four of the lighter weight DOKIO 100 Watt panels to construct two pairs of panels that are piano hinged on one side. I attached a cam action sash lock (to hold them closed) and a carrying handle on the other side. I sealed each of the screw locations with Loctite PL Marine Fast Cure Adhesive Sealant to prevent moisture entry. I positioned the solar panel sides to the inside of the hinge configuration to protect them during transport and carry. These two hinged assemblies when opened and wired together provide a nominal 400 Watt solar panel array. Note - the following information applies to DOKIO's original 100 Watt solar panels, not the 150 Watt panels described here on Amazon. Depending on your charge controller, you can wire the four 100 Watt panels in parallel (high 23 Amps/low 22.5 Volts) or in series (high 90 Volts/low 5.75 Amps). Another alternative (depending on your charge controller limits) would be to wire each pair in series (45 Volts/5.75 Amps) and then wire the pairs in parallel (45 Volts/11.5 Amps). The higher volts and lower amps can use smaller wires (10-12 Ga.) to efficiently (and safely) transport the power from the solar panel array to the charge controller if the charge controller is rated to handle more than 45 volts or 90 volts respectively. Update January 31, 2019 - At Ricky's request I added some pictures. Keep in mind that solar panel Wattage ratings are calculated under PERFECT conditions (the PANEL at 77 degrees Fahrenheit [not the air around it], 100% clean air and the panel perfectly aligned to the sun's rays). Virtually all solar panels will produce only about 70-80% of the panel's rated wattage in hot summer temperatures (-5% per 18 degree increase in the PANEL's temperature over 77 degrees). On the other hand, they can typically produce MORE power than the panel's rated wattage on very cold and bright sunshine days (+5% per 18 degree decrease in the PANEL's temperature below 77 degrees) so make sure your charge controller can handle the higher power if you plan to use these under very cold conditions. I discovered that I also need to work on controlling the RFI caused by the combination of my Chinese Manufactured MPPT charge controller and a 600 Watt Inverter ... RFI is not a good thing for operating Amateur radio equipment. Update March 23, 2019 - I have replaced my extremely RFI-Noisey Chinese Manufactured MPPT Charge Controller with a Morningstar PWM SunSaver Model SS-20L-12V that is compliant with FCC Part 15 rules regarding RFI control (made in Taiwan). Another Ham reported that this Morningstar PWM solar charge controller does not produce any RFI on his HAM system where he has connected his radio directly to the "Load" terminals on this model. Unlike most other solar charge controllers that allow only low-power lighting to be connected to their load terminals, this Morningstar charge controller's instructions describe full capacity loads (20 Amps in this case) can be connected to the charge controller's load terminals. This controller also includes a Low Voltage Disconnect (LVD) circuit that will shut the load terminals off if the battery's voltage drops enough to damage the battery if it is discharged any more. I will not operate my RFI-noisy DC-to-AC Inverter during Field Day. The FCC Part 15 rule compliant inverters cost in the neighborhood of $1,500-$2,000 and that high cost puts them beyond my budget. I haven't finished my portable power station for Field Day at this point but I will update this post after I get it operational and can determine if the charge controller produces any RFI on my Kenwood TS-2000 radio. Update June 27, 2019 - I updated my Field Day SLA AGM battery bank to a pair of Bioenno Power 12V, 20Ah Lithium Iron Phosphate (LiFePO4) Batteries and used only one of my 200 Watt panel arrays. The Morningstar Charge Controller mentioned above is designed to be used on Sealed Lead Acid (SLA), AGM or Flooded Lead Acid type batteries and does not work with Lithium batteries. To charge my new Lithium batteries I purchased a Genasun GV-10-Li-14.2V, 10.5 Amp 12 Volt MPPT Solar Charge Controller. I was concerned that its 10.5 Amp current limit might not handle the two DOKIO 100 Watt solar panels. However, in the 90 degree Fahrenheit heat (panels were hotter) and partly cloudy skies we had on Field Day this year, the panels (wired in parallel) averaged about 7 total Amps so no problem. I also used my older Kenwood TS-440SAT HF radio on Field Day and it worked very well. The Genasun Charge Controller (like the Morningstar) did not produce any RFI on the radio at all! We operated the TS-440SAT HF radio all day on Saturday on one battery and only changed over to the second battery around 9:00 PM and used that second battery Saturday evening until ~1:45 AM on Sunday morning when we shut down to get some sleep. We re-started at 7:30 AM Sunday morning and continued using the second 20aH Lithium battery until we shut down at the end of Field Day. The DOKIO solar panels did a good job on Saturday in spite of the 50% clouds (and a 20-minute rain shower). Sunday was mostly cloudy which limited the power from the two 100 Watt cells to about .12 Amps. Overall these solar panel's light weight and performance worked very well to build my small portable solar power system.
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Reviewed in the United States on August 16, 2018 Reviewed in the United States on August 16, 2018 by Scouter III
Set name: 400W*2
Panels deliver around 300 watts the temperature has been in the 80s so the watts will be lower. Also I do not have them at the optimal angle. I have two hooked up to a ecoflow stream, I will have 4 hooked up when I mount them to my Shed. I'm happy with them. Easy set-up with the ecoflow stream, plug them in and plug the stream into the wall socket and your making power. In Utah you can have plug in solar up to 1200 Watts. I should have around 1200 Watts when I'm done. Panels always give you less than rated unless, they are cold and at the right angle.
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Reviewed in the United States on March 21, 2026 Reviewed in the United States on March 21, 2026 by Markh21518
Set name: 400W*2
Update: My panels are hooked up. I'm pulling 600 watts on a partly cloudy sky and the panels are not in an ideal angle. I have them set up for privacy as well as power. This is about what I expected with the angle I've set. It did jump to over 700 watts with full sun. I would recommend these.
Reviewed in the United States on May 8, 2026 by CaTeacher
Set name: 400W
Great solar panel! Fits perfectly on my club car Precedent golf cart as a roof! Charging while I park it in the sun ☀️
Reviewed in the United States on June 5, 2026 by Paul Longfellow
Set name: 400W*2
Had up for about 1 week in Florida with panels in 24V series and appears to be be quality and very good even in light shade. Is well made and of quality materials. Will buy again when ready to expand.
Reviewed in the United States on April 7, 2026 by Harper
Set name: 400W
Puts out 270watts peak even at 3:00 PM. Not even close to the 410 W rating
Reviewed in the United States on May 11, 2026 by DP
Set name: 400W
Bought two of these , really great panels that put out the 400 they are rated for.
Reviewed in the United States on May 2, 2026 by Thomas Carey