LED Fog Lights on Riding Mower?

I've recently purchased a zero turn mower which does not have headlights and would like to mount some fog or driving lights on it.  I rarely mow past sundown, but I have had to use the headlights on my old mower on occasion.  The electrical system on my mower may be able to handle some 35 watt fog lights, although I was wondering if some LED fog lights like these:  LED fog light may give off enough candlepower for the occasional mowing.  They wouldn't have to be aircraft landing lights, but was wondering if anyone had any experience with lights like these and if they thought they may be good enough to do the job. 

Any other ideas?  I like the idea of the LED lights due to less power consumption and they may be able to survive the vibration better.

Thanks,

Carl

I don't think my link works in my first post, but here's a pic.  12 led's in each light.

http://webpages.charter.net/clarkmciv/ledFog.jpg

Thanks for the replies.  I'll stick with some 35 watt fog lights.  The charging system on the mower is 20 amp, and the battery is 365 amp (300 cca), and the only electrical usage is the starter and electric deck lift, so I think it should be able to handle a couple 35 watt fog lights for occasional use.

Thanks again for the replies.