Rayo 400W

Monocrystalline Solar Panel – Monofacial Module with LONGI cells

Tested and Certified



  • MULTIPACK OFFER | Minimum purchase 5 pieces, shipped on pallet, contacts us by mail for best price by direct sales.
  • RENEWABLE ENERGY | Adding this Solar Panel to a home or commercial building is the first step in converting the structure from being energy-dependent to energy producing (Off-Grid). Primarily used for residential and commercial purposes, rooftop solar power systems are the perfect way to decrease an electric bill.
  • MAXIMUM EFFICIENCY | Our panels are equipped with LONGI brand solar cells, which have a high efficiency of up to 21.48%. TR half cell technology aims to eliminate the gap between cells to increase module efficiency. 9BB technology reduces the distance between the busbars and the finger grid line, benefiting the increase in power.
  • CONNECTION | The MC4 connectors have been designed specifically for the connections of renewable energy systems. They are extremely reliable and easy to use, they save time because they allow very fast connections. They can be used for connection of multiple panels, so as to produce more energy. They are also used for connection to solar charge controller and inverter.
  • BLACK FRAME | We have chosen a black aluminum structure, so as to have a less visual and more professional impact. Ideal for homes, gardens, garages, etc.
  • RELIABLE | High reliability and weather resistance. Through dust, salt fog, ammonia corrosion test, can effectively deal with the harsh environment. EL tested solar modules; no hot-spot heating guaranteed.
    – Stronger Surface resistance to mechanical loads, it has passed the certification of 5400Pa snow load and 2400Pa wind load.
    – Corrosion-resistant aluminum frame for extended outdoor use.
    – Anti-reflective, high transparency, low iron-tempered glass with enhanced stiffness and impact resistance.
    – Junction Box: Quality diode ensures module running safety, IP65 Waterproof, Heat Dissipation, Long service life.
    – It can be used for many different applications, even tool sheds, garages, camps, RV, motorhome,  caravan, etc.
    – Ideal for residential and commercial rooftop systems.
    – Ground mount compatible.
    – Compatible with on-grind and off-grind inverters.

Additional information

Weight product:

19.5 Kg


1755 x 1038 x 35 mm


Tempered Glass

Frame Color:




Max power (Pmax):


Energy Spec:

Voc: 44.12V
Isc: 11.57A
Vmp: 36.67V
Imp: 10.91A

Power Tolerance:


Max System Voltage:

1000V DC / 1500V DC

Max Series Fuse Rating:


Operating Temperature:

-40°C ~+85°C

Output cable:

TUV 1×4.0mm – 300mm in Length

Thickness of Glass:

3.2mm tempered glass

Solar Cell:

LONGI – 9BB Monocrystalline – N.120 (60×2) Cells