sun?
Suddenly, the lights dimmed. She dimmed the lights.
Yes. You would need to wire them up to your running lights.
no
To safely and effectively hang Christmas lights outdoors, use outdoor-rated lights and extension cords, secure lights with clips or hooks instead of nails or staples, avoid overloading circuits, and turn off lights when not in use or when it's raining.
you have a short circuit, see a auto sparky
Yes you would use a serial circuit You would use parallel circuit lights for a Christmas tree because if you used series circuit lights, and one of the bulb blows, the rest of the bulbs will go out. But with parallel circuit lights, if one bulb blows the rest of the bulbs will remain their brightness.
will
Eyeball.
Full beam lights in foggy conditions will reflect the light directly back at the driver. Dipped headlights should be used instead.
You need grow lights which are in another light spectrum. Regular lights won't do as well to help your plants.
At this time there really is not much legal requirements relating to the use of yellow recovery lights. You would not be able to use the same color of the police or fire department recovery lights.
Solar is a very efficient power source, but I think it would be more cost effective to get it for the house instead of the umbrella. solar lights might be nice but it may be better to use just a normal patio umbrella instead.