how harm full is for a person

Very harmful if you ate it. I wouldn’t use it as a parachute either.

The Solar charge control keeps fading out, I am just trying to use the solar panel to charge usb devices. So far no luck, is mine broken?

Do you have a 12v battery attached? You need a battery attached, the panel is not designed to run anything directly, it is designed to trickle charge a car battery. The power from the car battery is what will charge your USB devices.

can i leave this system connected to the car permanently ie even whilst driving ? TIA Pam

I wouldn't have thought so, you would need to isolate the controller, as your car alternator will be charging your battery as you are driving. there are controllers on the market that are able to be connected to a running charging system, they are a lot more expensive than this system.

Is the solar panel waterproof, can i mount it outside?

The solar panel is fine, but I do get issues occasionally with the controller when wet.

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☀️ Power your adventure with clean, reliable solar energy—stay charged, stay ahead!

ALL WEATHER DURABILITY - Waterproof junction box guards against dust and water for rugged outdoor use.
PLUG PLAY CONVENIENCE - Pre-drilled mounting holes and included cables make installation a breeze.
SMART BATTERY PROTECTION - 10A PWM controller ensures optimal charging with built-in short circuit safety.
EFFORTLESS OFF GRID POWER - Compact 20W panel delivers reliable energy for your 12V battery needs anywhere.
VERSATILE OUTDOOR ESSENTIAL - Perfect for RVs, boats, camping, and remote DC applications—never run out of power again.

The Topsolar 20W 12V Solar Panel Kit combines a high-efficiency monocrystalline solar panel with a 10A PWM charge controller and waterproof junction box, designed for easy installation and durable off-grid battery charging. Ideal for RVs, boats, and outdoor enthusiasts seeking a lightweight, portable, and weather-resistant solar solution.

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Manufacturer	Topsolar
Part Number	T02P20C10BW0.83-1
Product Dimensions	80 x 40 x 2.5 cm; 1.91 kg
Item model number	TOPSPM
Size	us20w(read the size chart in our image)
Colour	White
Style	Watts,Battery
Material	Monocrystalline Silicon
Power Source	Batterie
Voltage	12 Volts
Wattage	20
Amperage Capacity	10 Amps
Maximum power	2E+1 Watts
Item Package Quantity	1
Special Features	Short Circuit Protection
Included Components	NO
Batteries included?	No
Batteries Required?	No
Item Weight	1.91 kg

Topsolar 20W 12V Solar Panel kit Battery Charger Maintainer + 10A PWM Solar Charge Controller +Solar Cable for Car RV Marine Boat 12 Volt Battery Off Grid

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