25-01-19, 10:29 AM
(25-01-19, 01:46 AM)His Dudeness link Wrote: Maybe using a relay is overkill for only 20W someone else who's fitted spot lights could advise on that. I think it's safer using the relay rather than taking power straight from a circuit in the bike's wiring
[size=1em]On the my Foxeye I took the power from one of the side lights, from there to a small water proof single pole flick switch on the front fairing under/behind the screen so that it is almost vertical (Helps keep the water from laying on the switch) Then to the fist LED Spot and then across to the other.[/size]
[size=1em]Obviously[/size][size=1em] only one wire needs to be switched (Ensure it is the [/size][size=1.35em]+[/size][size=1em] positive wire) [/size]
[size=1em]You can run a negative feed to each lamp, or ensure that both lamps are well grounded through the mounts.[/size]
[size=1em]As pointed out the added load (20 Watts) will make no difference what-so-ever to the battery performance and will not need a switching relay with a small load like that.[/size]
[size=1em]But you will need to be able to switch the LED spots off or disconnect them for the MOT, as they say they can/do interfere with the headlight beam pattern.[/size]
[size=1em]Wiring the spots from the side light bulb has a few advantages, firstly the whole installation is right next to the fairing so minimum wire length plus it is mostly contained behind the fairing, secondly it is almost impossible to leave the spots switched on flattening your battery, ignition off spot lamps off. thirdly the spots run on the same fuse as the side lights, mine have been running like that for two years with no adverse effect on the fuse. [/size]
[size=1em]The only caveat to that is if you turn your ignition switch to parking light position the spots will stay on, but my reckoning on that is if you are leaving the bike at night with the parking lights on you will notice the blaze of brilliant blue/white light illuminating the far galaxies.[/size]
[size=1em]Remember before you finally put your tools away that any diode is a one way gate, electricity can only pass through one way, if the positive does not go to the correct side of the LED it will not illuminate. [/size]