LED is the way to go. I say this because I changed all my interior lights on my boat last year. What a difference in lighting. All I did was change the bulb itself. The current draw is minimmal to say the least. I have a guage to show the battery draw for both batteries. Comparing the draw from previous years with the OLD Tech. filament light was a dramatic decrease in my secondary battery. Now with LED (brighter) the draw is almost nil for the same hours used.
Been thinking about changing the lights on my #109 & #122 to LED, vibration wont effect the bulb itself & the draw will be nil also.
Here is the site I used for replacement for my boat;
http://www.superbrightleds.com/cgi-b...uck_lights.htm
Spotlights are going to be something to think about,
Nik,