These Panels are in high demand - Current Stocks are 300W 

If you would prefer 305W these are due in Mid April - Please email us after ordering if you want to wait for 305W rather than have 300W

305W JA Solar Panels Mono Percium - All Black

Percium Cell
The latest in mono cell technology with passivated backside, local BSF and 4 Bus Bars from worldwide PV Cell leaders - JA Solar
First to reach >20.6% average cell efficiency in mass production
 
More Power Per m²
JA higher efficiency module type specially designed for UK rooftop market.
Maximise the kWp installation on the roof 
 
Aesthetics
Homogeneous Black Mono cells.
Black Frame for anti-glare and pleasing appearance.
 
Lower System Cost
Reduced installation and BOS cost
 
Excellent Low-light Performance
Enhanced spectral response at longer wavelength boosts low-light performance, which can produce more than 1% additional power compared with conventional module at system side.
 
High Reliability
Passed "3xMCS" TÜV SÜD Thresher Long life Accelerated Stress Tests.
Full range of PID-resistance tests
Harsh climate environment endurance tests
Full set of long-term reliability tests
Manufacturing inspected and certified by leading institutes such as PI-Berlin, Franhoeffer, Sgurr, OST and Solar-IF
100% in-house automatic manufacturing
2X 100% EL inspection ensuring defect-free production
Over 500MWp of JA Solar panels installed in the UK. 10GWp Worldwide.
 
Other Features
Positive power tolerance: -0~+5W
Modules binned by current to improve system performance
Excellent mechanical load resistance: Certified to withstand high wind loads (2400Pa) and snow loads (5400Pa)

Download Full Specsheet

Use with Tracer MPPT's - for a single panel on a 12V system you can use a 30A MPPT with this panel. 

This listing is for 1 panel, simply select how many you need in the quantity.  There is NO MINIMIUM Order.

Get upto 5% discount with automatically applied payment discounts in the checkout.

Delivery from £24+vat
First panel £24+vat, each additional panel just £6+vat delivery
ie: 3 panels costs £36+vat delivery.

Delivery service is an economy service that hand delivers fragile items on a weekly round across the UK.
Surcharge for remote areas including parts of Wales, Scotland, Ireland and Isle of Wight, please see Delivery info
This is a safer more reliable and cheaper way for you to receive panels and saves on the huge amounts of wasted packing materials.

Pallet Shipping 30 panels per pallet:
£150 UK Mainland
£350 Rest of Europe

Or you can collect for FREE from Nr Brighton.

Panel dimensions:1650mm x 991mm x 35mm

6mm Solar Cable - Price is per meter simply select the quantity as the number of meters you want.

Double Insulated UV protected solar cable

Max load: 50A

MC4 Solar Connector - Price is per MC4 pair simply select the quantity as the number of MC4 pairs you want.

These are the standard connectors used on most solar panels.

TUV certified, brand new, water /weather proof rubber seal that can ensure excellent electrical contact for life time service.
The metal pin is made from high quality machined copper and sealed tip (compare to the cheap sheet metal pin) that can ensure excellent electrical contact for life time service.
Build in press tabs for easy disconnect, no tool is needed. 25A max load.
Wires should be crimped or soldered into the pins and care should be taken to get the correct pin into the correct connector. Once the pin is pushed into the connector it is difficult to remove without the correct tooling.
 
MC4 Main Technical Specification:
Maximum Current: 25A
Maximum voltage: 1000V
Contact resistance:≤5mmΩ
Maximum operating humidity: 5% -95% (No condensation)
Temperature: -40 ℃ ~ +90 ℃
Waterproof Grade: IP67
Flame class: UL94-V0
Connecting cable specifications: 2.5mm2 4mm2 6mm2
Test voltage: 6.6KV (50Hz, 1min)
Metal materials: nickel copper
Insulation material: PA12 * 1988HB
Lock mode: Self-locking
Security Level: Class ‖
Insertion force:≤50N
Withdrawal force:≥50N
 
MC4 Features:
Shell has a strong anti-aging, anti- UV capability; found in outdoor use under harsh environment requirements; according to different needs can be arbitrary and used in conjunction with a variety of cell junction box; all connections are using press-fit connection;