I have a 300w grid tie invertor, can this (or 3 of them) connect directly to it?

Yes it can, connect three of these in parallel and your grid tie inverter would need to accept 12V panels which can output up to 18V.

The quoted optimum quoted is 2.71a for 50W panel, but what should I expect on a sunny and cloudy day?

Most of the time these ratings are based on 1000W/m^2 sun output. This is typically only achievable in hot places like near the equator. There are calculators online to calculate panel efficiency based on your geographical location and the time of year.

Which cable connecting kit do i need for 3 of these please anyone??

You do get a 3 connection to one cable on here. It will take 3 leads for 3 solar panels 12v down to one 12v cable and in to your inverter or usb converter

50w Monocrystalline | Desertcart Norway

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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5305 kr

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Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your freedom with Renogy’s rugged 50W solar panel—energy that keeps up with your adventure.

PLUG PLAY READY - Pre-drilled mounting holes and MC4 connectors make installation fast and hassle-free.
POWER UP ANYWHERE - 50 Watts of clean, reliable energy to keep your off-grid lifestyle fully charged.
SHADE NO PROBLEM - Bypass diodes optimize performance even in low-light or shaded conditions—never miss a watt.
LONG TERM PEACE OF MIND - Backed by a 25-year power output warranty, ensuring efficiency and durability for decades.
BUILT TO BRAVE THE ELEMENTS - Engineered with corrosion-resistant aluminum and impact-resistant glass to withstand wind, snow, and rain.

The Renogy 50 Watt Monocrystalline Solar Panel delivers efficient 12V power with advanced encapsulation and bypass diode technology for superior low-light performance. Built tough with corrosion-resistant aluminum framing and impact-resistant glass, it withstands harsh weather including high winds and heavy snow loads. Installation is streamlined with pre-drilled holes and MC4 connectors, making it ideal for motorhomes, boats, caravans, and off-grid setups. Supported by a 25-year power output warranty, this panel ensures reliable, long-lasting renewable energy wherever you go.

Specifications

ASIN	B07HR6KDW1
Amperage Capacity	2.9 Amps
Best Sellers Rank	2,470 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 15 in Monocrystalline Solar Panels
Brand	Renogy
Connector Type	MC4
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (250)
Efficiency	High Efficiency
Global Trade Identification Number	00810081408783
Included Components	1X 50W Solar Panel
Item Dimensions L x W x H	126.2L x 76.4W x 3H centimetres
Item Weight	7.72 Pounds
Manufacturer	Renogy
Material	Monocrystalline Silicon
Maximum Power	50 Watts
Maximum Voltage	12 Volts
Model Number	RNG-KIT
Number of Items	1
Number of Packs	1
Output Voltage	12 Volts (DC)
Part Number	RNG-50D-SS
Special Features	Advanced encapsulation material with multilayer sheet lamination, bypass diodes
Unit Count	1.0 count
Upper Temperature Rating	85 Degrees Celsius

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