NC, what are you trying to get out of the lights? Are just for looks or are you looking for a specific light pattern. Because these are driving/fog lights, they are going to light up the area directly in front of the truck really well (maybe too well, more on that). But, you are not going to get much in the way of depth (beyond about 75 feet). So, these may be exactly what you want, but they may not be.
As for the "too much light". You may find having all the lights on that you will get an effect known as "white wall". This can result in a bright "wall" being created in front of the truck which is going to wash out some detail. This is especially true in adverse weather where additional light maybe wanted. Essentially if there is anything in the air (including dust), it will be reflected back to the driver. This would be related to someone coming at you with their high beams on. So, careful positioning of the lights will be needed to prevent this from happening.
I would also recommend installing these lights such that they are controlled by 2 switches (ie, 2 lights on each switch). Why? each of these 150 watt bulbs are going to pull 11 amps. If you try to run all 4 bulbs off of the same circuit, you will be pulling 44 amps. Therefore, you will need a 50 amp relay. Those are harder to find and tend to have a pretty nice price tag associated with them. Where if you put them in pairs (can still be controlled using the same switch), you can use a 30 amp relay (common items at your local auto parts store) and use a much smaller wire for each set of lights. I would recommend a 6 gauge wire if you plan on using a single relay and a 10 gauge wire for each set of lights if splitting them into 2 groups.
If you have more questions about this, let me know. Keep in mind that the brightness of the lights will be affected by the quality of your wiring. Skimp on the wiring (ie, small gauge wiring), the wiring is going to drop voltage which is going to result in dim lights. Use some proper gauge wiring and the lights will give you tons of light.