shift light and led bulbs

SEB79 · Post by **SEB79** » Mon Dec 08, 2008 9:16 pm

could you use this kind of bulbs with multiples leds 12 V 5 w or 21w ?

Post by **brentp** » Tue Dec 09, 2008 5:09 am

Hi,

Unclear about your question, but each user defined output, including the shift light output, can drive 500 mA.

See:
http://www.autosportlabs.net/MJLJ_V4_ve ... hift_Light

A larger load would require a relay.

Are you referring to the popular LED equivalent replacement bulbs? These bulbs will likely consume less power than 5W/21W respectively; best is to check their spec sheet or directly measure their current consumption.

Almost certainly the 5W replacement bulb will work fine; the 21W LED replacement may be directly drivable as well.

SEB79 · Post by **SEB79** » Tue Dec 09, 2008 9:22 am

I (amper) = P (watts) / U (volts)

so 5 watts / 12 = 0,416 A

or 21 / 12 = 1,75 A so without resistance, it 's not usuable

For a 5 watts bulbs with leds, we got 0,416 A enought for a shift light ?

Post by **brentp** » Tue Dec 09, 2008 12:37 pm

Hi,

It sounds like you want to use an LED bulb designed to replace an incandescent 5W bulb. The LED equivalent bulb will consume much less power than the 5W bulb. (an LED with 5W of power will blind you!)

In any case, the shift light output should drive a 5W incandescent bulb or the LED replacement equivalent.

SEB79 · Post by **SEB79** » Tue Dec 09, 2008 4:55 pm

take a look on this link
http://www.superbrightleds.com/tail-brake-turn.html

what 's your point of view about them ?

Post by **brentp** » Tue Dec 09, 2008 5:49 pm

An interesting range of products!

You may want to consider the shift light solutions we have here:
http://www.autosportlabs.com/-c-22.html