Customized 18V Solar Module 20W Black Solar Panel
20W black solar panel is a compact and efficient photovoltaic module designed for small-scale power generation. Here are the key details you might be looking for:
Features of a 20W Black Solar Panel:
Power Output: 20 watts (W) under optimal sunlight conditions.
Color: Sleek black design, often using monocrystalline cells for better aesthetics and efficiency.
Voltage: Typically around 12V (useful for charging batteries, RVs, boats, or small electronics).
Efficiency: Monocrystalline panels (common in black panels) usually have 15-22% efficiency.
Durability: Weather-resistant with tempered glass and an aluminum frame.
Portability: Lightweight (around 4-6 lbs / 2-3 kg) and easy to mount.
Connections: May include MC4 connectors, USB ports, or alligator clips for easy use.
 
Common Uses:
Charging 12V batteries (for cars, boats, RVs).
Powering small electronics (phones, tablets, LED lights).
Off-grid setups (camping, sheds, emergency power).
DIY solar projects or educational kits.
 
Our Advantages:
10+ years professional manufacturer
Provide professional OEM/ODM service, any shape/size/voltage/connector can be customized.
Power guarantee is 5% higher than the industry standard
0-5w positive power tolerance guarantee 
ISO9001 approved
20w monocrystalline solar panel
Size: 345*400*25mm or custom
Features: Reliable,durable and versatile
Encapsulation: Class/Eva/Cell /Eva/Backsheet
Power Selectable: 5w-200w
Voltage Range: 6v,9v,12v,18v,24v
Power Tolerance:0-5w
 
ELECTRICAL DATA (STC)
Peak Power Watts-PMAX (Wp): 410
Power Output Tolerance-PMAX (W): 0~+5
Maximum Power Voltage-VMPP (V): 31.30V
Maximum Power Current-IMPP(A): 13.11A
Open Circuit Voltage-Voc (V): 37.70V
Short Circuit Current-ISC(A): 13.88A
Module Efficiency (%): 21.00%
STC: Irradiance 1000W/m², Cell Temperature 25°C,Air Mass AM1.5
 
TEMPERATURE RATINGS
Temperature Coefficients of Pmax: -0.350%/°C
Temperature Coefficients of Voc: -0.270%/°C
Temperature Coefficients of lsc: 0.048%/°C
 
MAXIMUM RATINGS
Operational Temperature: -40~＋85℃
Maximum System Voltage: 1500V
Max Series Fuse Rating: 25A
 
MECHANICAL DATA
Solar Cells: P Type Monocrystalline 182×91mm
Cell Orientation: 108 cells (6×18)
Module Dimensions: 1722×1134×30mm
Weight: 22kg
Glass: 3.2mm (0.13 inches),High Transmission, AR Coated Tempered Glass
Back Sheet: Black inside and white outside
Frame: Black Anodized Aluminium Alloy
J-Box: IP 68 Rated
Cables: (+):300mm,(-):300mm or Customized Length 
Connector: MC4 or MC4 Compatible 
 
PACKAGING CONFIGURATION
Modules per box: 36 pieces
Modules per 40’ HQ container: 936 pieces
 
For Wholesale, please contact sales@solarmastertechnology.com or whatsapp +86-15251587080 for more discount.