Alternator and Off-Road Lights

[toyota884runner]

I have a 1988 4runner. It has the 4 cylinder 22-re 2.4L. I currently have a stock alternator and 4 55 watt offroad lights already on the 4runner and working. I have a 500 or 550 amp battery. I forget which. I am wanting to add a possible 4 to 6 more off-road lights (55w) or (100w). i want to have 4 on a light bar and was wondering if 55w offroad lights are powerful enough to be on a light bar and provide any light. and i wanting to put to off road lights on the rear bumper for work lights kinda like on a tractor. What i want to know is this possible with the stock alternator and battery i have??? (i doubt it is)If it is not can you tell me what i need to make this happen and maybe a price range of cost involved??

[iluvdrt]

well speaking from experiance off road lights on a light bar are useless. you will not be able to see through the light being omitted unless it is perfectly clear out side. as far as the altenator being able to take the voltage from running them all at the same time, i dont think it will last long. that is a pretty good draw on the altenator. i had 2 150w lights on mine(kc daylighter with 150w bulb) and it lowered my idle when i turned them on. i went through altenators about every 4mo, between winching, lights and stereo. i would say try to get a larger altenator made.

[Whiteknuckle]

NorthWest Offroad sells heavy duty alternaters for your truck.