Lighting power source question

[Tench]

I thought i had better ask before i went ahead and tried it, i have bought one of these lights of ebay;
(not got it yet)
http://www.ebay.co.uk/itm/150750772538?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

If i where to connect it to the red wire going into the CA from my controller, which is this one;

http://www.ebikes.ca/store/photos/C7240-NC.jpg

2 questions, would the pack voltage power source in the CA connector (red wire) from the controller be able to handle the current and is this power source cut when the on off switch on the end of the controller is turned off.

I am mid build and not wired anything up yet so knowing how this will behave will enable me to plan the lights wiring in advance.

Thanks in advance for your help.

Oh,, another question while i am here, the light uses its own inline dc/dc dropper, can i switch the light off on the low voltage side while leaving the dropper powered up without harming it. I was thinking of putting a switch on the bars as bright lights need to be turned off when approaching others at night, i will be using cycle led's aswell, or should i switch it on the high voltage side, (i didnt really want the pack voltage in my handle bar switch)

Simon.

 

[amberwolf]

2 questions, would the pack voltage power source in the CA connector (red wire) from the controller be able to handle the current

Depends on how much current that light takes.

is this power source cut when the on off switch on the end of the controller is turned off.

Is your CA turned off when you flip that switch? If yes, then the power is cut. If no, it's not. If you don't have the CA hooked up yet to test that way, you'll need to use your multimeter to test instead, either by voltage or by continuity.

 

[Tench]

Thanks for that, i have checked and yes the continuity is broken between the controllers positive input wire and the red CA wire by the controller switch so i am sure that the controller on off switch will also turn my light feed off. The question still remains, can i switch the light off on the low voltage side of the dropper while leaving the feed to the voltage dropper on without harming it?

 

[rjoe]

Thanks for that, i have checked and yes the continuity is broken between the controllers positive input wire and the red CA wire by the controller switch so i am sure that the controller on off switch will also turn my light feed off. The question still remains, can i switch the light off on the low voltage side of the dropper while leaving the feed to the voltage dropper on without harming it?

you can but it might still be drawing current (i.e. battery)

 

[Tench]

Thanks, thats ok as it is only so i can turn the main beam off for a moment when approaching people/traffic in the dark without having full pack voltage in the hi beam switch, the dropper will be isolated along with the controller when the bike is not in use.

Ta muchly

Simon.