Originally Posted by
wgaynor
I am impressed. I followed the advice given here and built my own light system. It is blinding. I used a 12 volt lead sealed acid battery 5Ah, a 12 volt 50 watt outdoor spot light (the lawn and garden type), made a case out of pvc pipe fittings, ... Only problem is the heat that the bulb generates. Do you think I can get the same brightness or improve the concentration of light into a narrower beam with a smaller watt bulb?
Try a 12v 20 watt MR16 bulb--found at Home Depot/Lowe's. You will get less heat and longer run-time. If you want to really increase your run-time, get a 12v 3watt LED MR16 bulb (
http://autolumination.com/mr16.htm ). I find I like the ones with 3 1-watt rather than 1 3-watt light source. The light is not as bright as a halogen, but I find it enough for seeing the road and to be seen by motorists.