Signal LED Load Resistors

Hi

I have replaced the signals with LED 7443 bulbs due to which the blinking speed has increased. Even after purchasing load resistors and connecting them - i see no significant change in the blinking speed, it should have reduced. The following is done

1) separate resistors for the rear signals, not any connected resistors to the front
2) The resistors do get hot which means they are connected.

So..
1) Any ideas on the correct resistance requried ?
2) Do i need to connect resistors to the front also ?
3) whats missing ?

Thanks All

[image: View Post]AnikMankar, on 31 October 2009 - 11:12 PM, said:

Hi

I have replaced the signals with LED 7443 bulbs due to which the blinking speed has increased. Even after purchasing load resistors and connecting them - i see no significant change in the blinking speed, it should have reduced. The following is done

1) separate resistors for the rear signals, not any connected resistors to the front
2) The resistors do get hot which means they are connected.

So..
1) Any ideas on the correct resistance requried ?
2) Do i need to connect resistors to the front also ?
3) whats missing ?

Thanks All


Hi Anik,
Just looked up the spec of your 7443 led bulbs - 12v, 9 leds and 1 watt?
Put the numbers into here:
My linkhttp://led.linear1.org/1led.wiz?VS=12;VF=12;ID=1000

1) looks like you need 1Ohm 2 Watt load resistor per bulb.
2) No
3)The standard indicator relay is designed for the high load of normal bulbs (21Watts IIRC) a solution is to fit an solidstate electronic relay which isn't reliant on current. something like this one.
My linkhttp://www.indysuperbike.com/customer/product.php?productid=117013&cat=28488&page=1

Hope this helps, Red

[image: View Post]AnikMankar, on 31 October 2009 - 11:12 PM, said:

Hi

I have replaced the signals with LED 7443 bulbs due to which the blinking speed has increased. Even after purchasing load resistors and connecting them - i see no significant change in the blinking speed, it should have reduced. The following is done

1) separate resistors for the rear signals, not any connected resistors to the front
2) The resistors do get hot which means they are connected.

So..
1) Any ideas on the correct resistance requried ?
2) Do i need to connect resistors to the front also ?
3) whats missing ?

Thanks All

I replaced all my bulbs in my '99 with LED bulbs and I found a relay in an auto parts store that I was able to adapt to the VFR in order to make it blink properly. Here in the US I was able to use the Tridon EP-35 from a local parts store and attach wires and a plug to mate it to my VFR. Here is some more detail in my original post:
My link

Hi

Thanks for your replies.

I have actually put the 18LED bulbs both front and back. the resistors i bought are 6 Ohm/50 Watt load resistors.

Think i may need a higher load resistors ?

Thanks

Quote

Thanks for your replies.
I have actually put the 18LED bulbs both front and back. the resistors i bought are 6 Ohm/50 Watt load resistors.
Think i may need a higher load resistors ?
Thanks
According to Superlumination, 6 ohms are what is recommended.
I eventually went with a flashing relay change. A tab trim and I even managed to install it with Honda's plug and it's held in place with their rubber retainer.
Here :warranty:
An example of the flashing rate: :491: [image: Posted Image]

http://superluminati...nstallation.jpg

Looks like will need 3ohm not 6ohms based on the installation link. 6 ohms are needed only if one of the sets are replaced (back or front), if all 4 are replaced i will need 3ohms.

back to ebay and purchase.

thanks all

Skip the load resistors and by an LED flasher from superbrightleds.com, Simple plug and play installations. Works great on my VTR, I've got LED turn signals front an rear.

http://www.superbrig...om/flashers.htm
Scroll to the bottom of the page, the part number is LFS-1-FLAT
[image: Posted Image]

[image: View Post]Daniel Paul, on 02 November 2009 - 01:34 AM, said:

Skip the load resistors and by an LED flasher from superbrightleds.com, Simple plug and play installations. Works great on my VTR, I've got LED turn signals front an rear.

http://www.superbrig...om/flashers.htm
Scroll to the bottom of the page, the part number is LFS-1-FLAT
[image: Posted Image]


the current VFR flasher requires 3 wires - on the flasher i see only 2 - so not sure this flasher will match.

You only use 2 out of the 3 wires as the third one is an earth and not required for an electronic flasher.

[image: View Post]dogman, on 02 November 2009 - 05:15 AM, said:

You only use 2 out of the 3 wires as the third one is an earth and not required for an electronic flasher.

Dangit! Couldn't find any info on that when I was doing mine. Oh well, the three wire relay I adapted works great anyway.

I have to echo the advice about going with an electronic flasher unit.

I think load equalizers/resistor packs are a waste -- literally. All the [now]excess power you're saving by using LEDs is literally being burned off just to maintain a flash rate. Plus, I'm not too keen on the idea of putting little heater packs somewhere on the bike.

To me, resistor packs/load equalizers are the old way of doing things. Definitely get an electronic flasher relay! :fing02:

LED resistors to restore proper flash rate are a band-aid for the root problem.

And true, the energy savings from using LEDs is wasted by the resistor.

Get the proper electronic flasher that is not dependent on load and be done with it.

thanks guys

I have placed an order for the LED flasher - will keep you'll posted on how it goes ....in the mean time will have stick around with the high "flashing"... :goofy: