It is a source of light that generates its own light, doesnt reflect off anything else
Light!
The brake light switch, or turn signal assembly (dependent on how your system is wired, IE: that year of car).
Sapphire doesn't create or produce light. If you can see it, then it must be reflecting light from something else.
Sapphire doesn't create or produce light. If you can see it, then it must be reflecting light from something else.
Brake switch.
OK, if the left turn signal light flashes on the trailer when you hook it up I would pretty much think it has to be the bulbs or sockets are bad in your truck. I'd put a new bulb in and seee what happens before anything else. If no help, pull one of the bulbs and put a test light in there and see if it flashes.
well if you are american then the lightning bug but i cannot think of anything else
Same as at home, or anywhere else. Basically, use energy-efficient light bulbs, and turn off lights you don't need (for example, when the last person goes out of a room).
It could be the brake light switch, usually mounted on the brake pedal.
think about it, life with outlampsstreetlightsneon signsflashlightsand anything else with a lightbulb
i would heck that you have the correct double element bulbs in your tail light assembly