[richlandrick]

If those lights consume what power they state they do, they will fry your electrical system. At best you will not be able to run any other accesories while using the lights.

However, the Chinese often grossly overstate specs by adding things that shouldn't be added together and choosing the most favorbale way of stating something without explaining how they got the number.

Good luck.

 

[richlandrick]

yes it is. That means a total of ~120 watts to play with after powering the bike's ignition, fuel system, and factory lights. Maybe a few more, but that's all. And that is peak output at highway speeds.

 

[richlandrick]

The lights use two led elements, a 6000K white and a 3000K yellow. Try wiring them so that only one element is on at a time. That may bring the power consumption down to half which is still higher than I would recommend. These lights use chinese led elements. They burn many more watts for the same output as more efficient american CREE elements.

For everyone else we have lights and a wiring harness that work extremely well on V-stroms. A DL800 lightbar is coming very soon.

 

[richlandrick]

Oh boy, I need to make some corrections on our website. There is some outdated information lingering on some pages.

All lights are 25 watt, 2500 lumen each.

I'm working on a DL800 Light bar this week end.

 

[richlandrick]

$150 for a pair of 900 lumen lights is not a great deal.

 

[richlandrick]

P=VI
Your stator is rated at max output which happens at higher rpm
The normal system voltage at cruising speed is about 14.6V, bujt I will check mine next time I'm cruising at highway speeds.

14.6 volts x 9.69 amps = 141.47 watts

Keeping an eye on it is a very good idea. Heated grips and espeacially heated clothing is likely to be problematic if running both the high and low beam.

I would wire the lights so that only opne set is on at a time, but that's just me. The thought of buring up the charging circuit gives me the willies.

 

[richlandrick]

That would be about 165 watts at 14.1 volts. That's not as good for sure.

I really think we need to have someone who understands the charging circuit and voltage regulator to chime in here for safety's sake.

@Rolex @Gert @Brockie

Do you guys know who understands the carging system well enough to give a qualified opinion about this kind of load? The 800 uses the 375 watt system. So acording to the late great jonofchar we 800 owners have 120 watts extra power (based on Gen 2 650 system operating loads for FI/lights/dash/etc.).

It's odd that the DL800 went down in rated power output from the 2012+ DL650s, but maybe that was due to use of LED headlights/rail lights.

Can we estimate power available by looking for system voltage drop as load increases to the point that voltage regulator quits dumping excess power? In other words a voltage drop. And can assume if system voltage drops at operating rpm when an accesory turns on that teh excess voltage dumped by teh voltage regulator has been exceeded?

 

[richlandrick]

I was working with the assumption that if it was pulling let's say 115w at 11.5v, that when the bike was running and charging, that the total power in watts would remain the same, but the higher voltage would allow it to achieve 115w using less amps. I will put a clamp on it with the bike running to check that theory. I don't think it's using 165 watts.

Increasing RPM increases voltage. Increasing voltage increses power for any given resistance.

V=IR If voltage goes up and resistence stays the same amperage increases.

P= IE = (I squared) x R

No matter the answer this going to be useful information for a lot of people down the road.

 

[richlandrick]

Good call on the NHTSA.

We need video. And this needs to be a dedicated thread.