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VSUN 400W Solar Panel 108 cell VSUN400-108BMH BOB

Pay $67.20 / month
Solar Loan from 6.99%
Minimum order – 6 panels

We have changed the number of solar panels to comply with shipping terms.

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All VSUN Innovative & Smart products All 400 Watt Panels



Rated Power Output 400 W
Voltage (VOC)37.2 V
Maximum String Voltage 1000V
Cell number
  • 108 cell
Cell TypeMonocrystalline
Rated Efficiency20.49%
Connector TypeMC4
Backsheet Color
  • black
Frame Color
  • black
Dimensions LxWxH67.83 × 44.6 × 1.37 in
Weight46.3 lb
ManufacturerVSUN Innovative & Smart
Manufacturer Part #VSUN400-108BMHBOB
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

About product

108BMH BOB is a model that uses a number of technologies to bring durability and performance to the next level. This panel takes full advantage of the Passivated Emitter Rear Contact (PERC) technology that allows it to capture up to 12% more energy. All thanks to a reflective layer on the back. This design maximizes the number of photons absorbed by solar cells. 

Another advantage is the half-cut cell technology. 108BMH BOB has solar cells half the size of those installed in conventional panels. The main benefits are decreased power loss, improved longevity and better low-light performance. Given its size and weight, 108BMH BOB efficiency of 20.49% is quite impressive. Novel design solutions allow this panel to look as well as it performs. This model is just 1.37" in depth and is jet black with a sleek finish. The panel's functionality and durability are not affected by its aesthetic appeal though. VSUN provides 12 years of product warranty and guarantees that after 25 years, performance will be at 87.2% or more. 

  • 108 half-cut PERC cells
  • 400 W nameplate capacity
  • 20.49% efficiency
  • 1000 V DC maximum system voltage
  • MC4 connectors
  • 12 years of product and 25 years of performance warranty

Higher efficiency of up to 20.49%

108BMH BOB guarantees the highest power output. PERC technology and potent anti reflective coating result in 20.49% module efficiency. This is significantly higher than average, which will result in substantial extra savings over the years of operation.

Keeping the cool in high temperatures

108BMH BOB manages to stay efficient even at high temperatures. For every 1.8°F above 77°F, it loses just 0.32% in efficiency, allowing you to make the most of the sunniest hours.

High quality standards

VSUN stringent production requirements include various tests to guarantee high quality. The facilities are highly automated, allowing the manufacturer to maintain high standards while keeping warranty claims to a minimum.

Reliability and degradation resistance

VSUN guarantees limited degradation over the ensuing 25 years. The performance will only degrade by a maximum of 2% the first year, and then only by a maximum of 0.45% yearly after that. After the 25 years are over, your modules will still show at least 87.2% of nominal capacity. A substantial 12-year product warranty is also included with this 400 W VSUN solar panel.

Certified for the worst environmental conditions

108BMH BOB is PID, salt, acid, and ammonia resistant. It can also bear mechanical loads of up to 5400 Pa on the front and 2400 Pa on the back. This durability is mostly owing to the 1.37" thick anodized aluminum frame and a layer of protective glass.

Outstanding all-black design

The panel has a sleek, all-black style that complements any roof beautifully. VSUN uses unique treatment and selection procedures to guarantee optimum cell color. The cells are connected by thinner wires, and from a distance, the surface of the modules seems seamless and smooth.


67.83" x 44.6" x 1.37"


46.3 lb

Reviews & Questions

  • Reviews (2)
  • Questions (3)
They are functioning excellently! The Enphase inverter's accompanying monitoring app is also fantastic. Thanks to A1, we saved quite a bit on our system
Buford Bashirian
12/26/2022 07:48 pm
We needed smth really affordable and were recommended these VSUN panels by our installer. After doing some study, I decided that they would be a decent choice. Have been running smoothly for the past three weeks.
Ralph Hessel
12/25/2022 01:03 pm

Leave a review

Will this panel by itself charge a 48 Volt lithium battery through an MPPT CHARGE CONTROLLER ? What is the amperage of the solar panel? THANK U VM.
12/29/2022, 07:44
Maximum power current of this model is 12.84 A. This panel can certainly charge a lithium battery, but it may take a while to charge a large battery bank.
Where are these pannels from. China, Japan or USA?
12/29/2022, 07:42
VSUN uses two manufacturing facilities: in Vietnam and in China.
Where are the panels manufactured?
12/29/2022, 07:40
VSUN manufactures panels in Vietnam and China.