Electric LED savings Calculation - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 17 Old 01-18-2012, 01:25 AM Thread Starter
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Electric LED savings Calculation

Am I off base ? or if this correct:
Each signal light is 21 W x 4 = 81 W
------------------Brake light is 5 W running (21 braking)
----Total (with brake light off) 86 Watts

LED =1 amp = 12 W x 4 = 48 W
LED Brake running =-----? 2 W
total LED W--------------50 Watts

86 standard-50 LED = Savings = 36 W

I guess that would help if true (could add 30 W hot grips, GPS and heated liner 77 W, heated feet inserts 15W =122W total, and leave some life in stator)
(Pardon the dashes- format was funny otherwise)

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DL650 2004 x 2011 approaching Valk in weight with all the "improvements"

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post #2 of 17 Old 01-18-2012, 08:54 AM
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That sound right, mathematically, but remember the turn signals are only ON when they are flashing, and the brake light is only ON when using the brake.

So while the savings are good when the lights are ON they aren't really ON that much.

If you are running that close to the edge of the electrical system, I think you would gain more by cutting out one headlight, which is on continuously. So that would be a constant 55W savings (low beam). Here's a link to a cut out switch Suzuki VStrom Electrics.

Hope this helps.

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post #3 of 17 Old 01-18-2012, 09:26 AM Thread Starter
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savings

Aren't he front signals on all the time ? (1157?) And the braked running is 5W (brake mode is 21W) I guess I forgot that the rear blinkers are off not blinking (I modified my other ride for always on) so I guess that is a zero saving

Valkyrie 2000 x '03 750lbs + Farkles
DL650 2004 x 2011 approaching Valk in weight with all the "improvements"

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post #4 of 17 Old 01-18-2012, 10:09 AM
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On my 08, none of the signals are on by default.
They're so bright that I'm definitely looking into figuring out the electrical needs to get them to act as both a running light and turn signal

[SIZE="1"]When was the last time you checked your tire pressure?[/SIZE]
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post #5 of 17 Old 01-18-2012, 10:10 AM
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The signals are single filament. If the signals and brakes are off, only the 5Wx2 tail lights and the even smaller license light are on besides the headlights.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general...nicknames.html

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post #6 of 17 Old 01-18-2012, 03:22 PM Thread Starter
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so only < 15 W savings - thanks, I will bypass a head light

I guess I should not have assumed the blinker were always on, I just went out and turned on the bike to check (I can't believe how unobservant I have been- I've had it a few months now !)
I must have modified my Valkyrie with 1157 bulbs. (BTW- quite a contrast riding the two)

I don't know why you would need to use a relay to bypass a headlight. A rated switch should handle the load OK, with heavier guage wire (18 or 16 g) to avoid voltage drop.

GreyWolf Thanks for setting me straight (again) !

Valkyrie 2000 x '03 750lbs + Farkles
DL650 2004 x 2011 approaching Valk in weight with all the "improvements"

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Reciproca non est verum (Frank and Ernie 2013)
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post #7 of 17 Old 01-18-2012, 03:40 PM
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A relay isn't needed but a switch that can handle 72W or 6 amps is figuring 20% over the rating for safety. A conveniently sized switch may be used with a relay if said switch is lacking. I do recommend relays to feed the headlights. Many owners of stock systems report contact and connector failure. The poll at https://www.stromtrooper.com/informat...blems-not.html is very young and a bit obscure yet respondents with problems are in double digits.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informa...-you-have.html
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post #8 of 17 Old 01-18-2012, 03:46 PM Thread Starter
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I guess it is easy enough, maybe tap the heated grip wire (which I need to dig out ay

to power the relay, and maybe have a way to turn off the headlights to start/emergency power.

Valkyrie 2000 x '03 750lbs + Farkles
DL650 2004 x 2011 approaching Valk in weight with all the "improvements"

Cogito Ergo Sum (Rene Descartes 1637 )
Reciproca non est verum (Frank and Ernie 2013)
(I think, therefore I am. The reverse is not true)
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post #9 of 17 Old 01-18-2012, 04:01 PM Thread Starter
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BTW do you still like your HID set up?

I found the thread in your reference about these:
Digital Slim H4-3(9003) Bi-Xenon HID Kit Wholesale Digital Slim H4-3(9003) Bi-Xenon HID Kit HID Conversion Kits Car Lights HID Xenon Car Headlights Bulbs Ballasts at competitive prices [VVME-HKB93-DSL] - $70.99 : VVME.COM, Tattoo Kit, Xenon HID Kit, )
You use them for both lights I assume? 35W HID headlight= 75 W total
So some Wattage savings and great lighting (I am guessing) and no need to switch off one headlight , no need for auxillary lighting (I am treading away from the thread I guess!)

Valkyrie 2000 x '03 750lbs + Farkles
DL650 2004 x 2011 approaching Valk in weight with all the "improvements"

Cogito Ergo Sum (Rene Descartes 1637 )
Reciproca non est verum (Frank and Ernie 2013)
(I think, therefore I am. The reverse is not true)
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post #10 of 17 Old 01-18-2012, 09:26 PM
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You have to add the ballast draw with HID headlights. They actually draw 40-44W each. I still cut off one headlight by opening the circuit to one ballast an colder days or longer trips. The great thing is the HIDs are at full brightness from 9V-16V. When the Heat Troller is at a partial setting, the H4s would modulate as the Troller was on for a fraction of each second.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informa...-you-have.html
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