When I had an eline on my CRE250, I ran an 85w single bulb, and had the other 100w lead to grip warmers and a tail light. Did not do much night riding with that setup though. Most people really seem to prefer a battery powered helmet light, though.
On my previous dual sport bikes (KDX200 and KDX250) I had Baja kits but no rewound stators. I would remove the battery when trail riding. It seemed like when I ran my 50 watt DOT headlight and bulb, I got less light at low rpm than the stock KDX 30 or 35 watt bulb. Honestly, did very little night riding with either setup, and my perception was mainly based on daylight riding in the woods.