General lighting questions, such as those relating to changing bulbs, diagnosing lighting faults, etc

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5
votes
1answer
10k views

How should the lights for a trailer be hooked up?

I have a tent trailer and the lights don't work right. It has a 4 wire connector to my car but one of the wires on the trailer connector was worn out and probably not working. So I got a new 4 prong ...
9
votes
3answers
227 views

How do you test analogue electrical circuits?

When trying to diagnose problems with conventional analogue electrical circuits, such as lights, speakers, heated rear windows, etc, as well as short-circuits and unexplained current draws, it can be ...
6
votes
3answers
93 views

Are there any (legal) ways to increase halogen headlight brightness?

My 2003 Opel Agila has H4 combined full and dipped beam headlight bulbs which are completely useless in the dark. It is really hard to see anything on the dipped beam. They do not seem to be very ...
4
votes
0answers
135 views

Dash Lights and Headlight Angle Adjust Stop Working

I have a 99 Nissan Almera on which the horn was replaced a few days ago and I just noticed that the dashboard lights and the headlight angle adjuster are no long working. A more powerful aftermarket ...
1
vote
1answer
1k views

Requirements for number plate illumination (UK) (Are LED Bolts good enough for cars?)

Could someone tell me what the law states with regards to the illumination of number plates in the UK? (i.e. number of lights, intensity in mcd (milli-candella)?) I have installed a reversing camera ...