FAQ:
Why do sometimes solar panels don't reach their rated 300W?  
In reality, many external factors would affect the conversion efficiency, generating less power than the rated power, which is 300 watts.    Here are the factors that most people might overlook:  
1.    The weak sunlight  
When it’s cloudy or rainy, the solar radiation obviously decreases, the solar light is way less for the solar cells to generate the maximum power.    To solar cells, the weaker the solar light or solar radiation they got, the smaller amount of the power they generate.  
2.    installation angle  
In the same geographical location, the installation way will affect the conversion efficiency too.    The longer time the solar panel bathed in the sun, the more power the solar panel generated.    The best installation angle is around 30-40°, with the panel facing south.  

【High Conversion Rate】
The integrated monocrystalline solar cells combine with polished, ultra-transparent PET on the surface to contribute to a maximum of 22% conversion rate to empower a gre-en and sustainable lifestyle.
【Durability】
Corrosion-resistant aluminum frame provides extended outdoor use that ensures the panel can last for decades. The IP67 rated junction box is versatile due to its ability to withstand dirt, dust, debris, and low-pressure water jets.
【Installation Made Easier】
Junction Box+IP67 Solar Connectors High sealing junction box. It can effectively block water droplets and water vapor from outside. Even if soaked in water, the internal components will not be any damage.No need to worry about bad weather. These IP67 waterproof solar connectors ensure that the water and dust will not enter the connector during extended outdoor use. Effectively preventing water from seeping in. Perfect for your yacht and marine applications.
【High Quality Material】
This solar panel is made of advanced encapsulation material with multi-layered sheet laminations to protect cells from physical damage or distortion, improving cell performance and providing lasting solar panel durability.provide a long service life. extended outdoor use, allowing the panels to last for decades.

【12V/24V 30A Solar panel charge controller】
Build-in industrial micro controller.
One-key setting, auto memory function. digital display,
3-stage PWM charge management.
There are Build-in short-circuit protections, open-circuit protections, reverse protections, over-load protections
reverse current protections, low heat productions.
With double USB ports charge.
The Regulator is only suitable for lead acid batteries:OPEN, AGM, GEL

【Solar Panel Y Connector 1 To 2】
An IP67 waterproof ring on the male solar cable connector adapter is perfect to seal out water and dust to prevent corrosion. These mc4 extension cable connectors are stable and safe with the built-in lock which is long durable in outdoor environment.

Specifications:
*300W Solar panel: 
Maximum Power: 300WMaximum
Power Current(IMP): 17.24A
Maximum Power Voltage(VMP): 17.4V
Short Circuit Current(ISC): 18.27A
Temperature Range: -20ºC-60ºC
Power Tolerance: 0-3%
Solar Cell: Monocrystalline Grade A
Open Circuit Voltage(VOC) 21.4V
SIZE：930*540*50mm
*30A Solar panel charge controller:
Type :  Solar Charge Controller
Material  :  ABS
Screen :  LCD display screen
Battery Voltage  :  12V / 24V 
Working Temperature :   -35 to 60 degree Celsius
Self consume :  10mA
Float Charge :  13V
Discharge stop :  10.7V
Discharge reconnect :  12.6V
USB output  :  5V/2.5A 
*1 To 2 Y Branch parallel Connectors:
Rated Current：30A
Rated voltage：1000VDC
Test voltage：6KV
Waterproof degree：IP67
Flame class：UL94-VO
Insulation material：PPO + PC
Connecting system：crimping connection
Temperature range：-40  - +90 C
*Anderson Plug Cable:
1M    2.5 MM² 
Solar Extension Cable  + Connectors
(1) Rated voltage： 1000V/1500V DC
(2) Rated current： 50A
(3) Max.conductor temperature：+120℃
(4) Ambient temperature： -40~+90℃
(5) Dielectric Strength(AC)： 6.5 KV/5Min.

Package Content:
Ship according to your option

Patr SolarPanel kits packaging: 
300W kits:
*1x300W solar panel+30A controller
600W kits:
2x300W solar panels+30A controller+1To2 cable
300W solar panel kits:
*1x300W solar panel + 1M anderson plug cable
900W Kits:
*3x300W solar panels+60A controller+1 To 3 cable
1200W Kits:
*4x300W solar panels+100A controller+1To4 cable
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