PDA

View Full Version : Fuse or No fuse



Adrian Euro
23-01-2010, 09:02 PM
Hi,

I was installing some LED lights for the my euro just along my front lip.

Question is i have read up about installing these and it says that i need a fuse between the switch and the battery?

What amp fuse should i put there?

Is there need for a fuse? Can i run a Wire from the Positive terminal to the switch? And then the positive wire from the led to the swith?

Will a be needed? If not putting one in will it stuff up my led lights? They are not really expensive but will it blow any of the individual leds?

Thanks

riruiz_88
23-01-2010, 10:03 PM
yes you definitely need a fuse. the fuse protects the circuit in cases of fault currents, if no fuse is used you run the risk of melting cables and causing a fire. do you know how much current (amperes) the LED's need to run. or what power (watts) it consumes?

from there you can calculate what size fuse you need.

Adrian Euro
23-01-2010, 10:32 PM
yes you definitely need a fuse. the fuse protects the circuit in cases of fault currents, if no fuse is used you run the risk of melting cables and causing a fire. do you know how much current (amperes) the LED's need to run. or what power (watts) it consumes?

from there you can calculate what size fuse you need.

Thanks all i know is that its Voltage: DC 12V does that help?

This is the listing
http://cgi.ebay.com.au/2-x-Audi-R8-3M-LED-SMD-60cm-Headlight-Car-White-Lights_W0QQitemZ280453689944QQcmdZViewItemQQptZAU_ Car_Parts_Accessories?hash=item414c57b258

Thanks

euromandeluxe
23-01-2010, 11:00 PM
Thanks all i know is that its Voltage: DC 12V does that help?

This is the listing
http://cgi.ebay.com.au/2-x-Audi-R8-3M-LED-SMD-60cm-Headlight-Car-White-Lights_W0QQitemZ280453689944QQcmdZViewItemQQptZAU_ Car_Parts_Accessories?hash=item414c57b258

Thanks

try messaging the seller and asking for the current and power values

iLlusion10
23-01-2010, 11:17 PM
DC 12V is the voltage, not the current, you need to know the current in amps.

aaronng
24-01-2010, 09:31 AM
You can measure it by putting a multimeter in current mode in series.

xxb4xx
24-01-2010, 10:15 AM
LEDs draw a very low current.. The actual led strips themselves prob have a fuse within them..

You shouldn't need anything more than 5amps if all your running is the LEDs on that circuit..

The X Man
24-01-2010, 10:50 PM
Typically LED's draw between 20mA to 25mA each which means that each strip will draw approximately 300mA each (12 LED's per strip).

Adrian Euro
25-01-2010, 11:02 PM
Typically LED's draw between 20mA to 25mA each which means that each strip will draw approximately 300mA each (12 LED's per strip).

ARE SMD the same as LEDs. These says they are SMD on the box.

furythree
26-01-2010, 09:09 AM
where are u mounting the leds
internally or externally? pictures after please! :D
i was told that we cant take the headlight casing off to stick the strip at the front like the audis so we have to do it on the outside. is this true?

or are u installing it near the fogs

xclusive_eg8
26-01-2010, 11:46 AM
i ran all my interior led strips of the 7.5A interior light circuit, working fine so far...


for exterior i would just take feed from battery - fuse - light and just switch the neutral..


or connect up to parkers

furythree
26-01-2010, 10:41 PM
apparently parkers is a bad idea because if u want them on during the day, u have tio turn on ur parkers too which menas u have parkers and rear tail lights on during the day

xclusive_eg8
28-01-2010, 11:44 PM
ARE SMD the same as LEDs. These says they are SMD on the box.

solid micro diode?? same thing as a LED

The X Man
29-01-2010, 07:38 AM
solid micro diode?? same thing as a LED

I think you mean Surface Mount Device. It's just the type of method used on the LED to fix it the printed circuit board.

SMD components allow goods to more compact than those with through hole parts.

Here is what SMD LED's look like mounted to a PCB.