Actually I am pretty sure those Ebay lights are driving beam lights... There is absolutly no reason to put 150w bulbs in a fog light. not to mention they need to be designed to reflect the light so it will be less likely to bounce back up at you.
They look like good enough lights. I personally run 8 KC 57 series lights (well I will when I get the back rack made. 4 Long range lights up top and 4 driving/fog lights in front like ambivolent
To be honest, who knows... You never really know with stuff like that on eBay. Personally I'd just recommend spending the little extra $$ and buying some Hella or KC lights. I see them stating their lights as "150w" purely as an advertising gimmick.
Nobody really advertises the wattage of their lights because its normally either 55w for on-road legal lights, and either 100w, or 130w for offroad lights. And for an extra 5 bucks you can swap in whatever wattage bulb you want after you get the light. So to me, the wattage of the light is unimportant, and the design/quality of the reflector and lens is what is important.
Again, I'd say those eBay lights are hit and miss. You might be fine, but then again they might be terrible. I'm willing to bet they are more of a "fog light" type lens since that is easier to design and market. Fog lights just spill a lot of light into the road right in front of you. Driving lights take more precision and thought in their design.
If I were you (unless the metal housing is a huge deal to you) spend 50 bucks and pick up some Hella 500's, or some Hella 700's if you are willing to spend about $75 a pair. I believe some KC lights with metal housings can be had for around $100, and at least then you can guarantee the quality!
Thats just my 2 cents... Not meaning to offend anyone, just tryin to offer my opinion and advice on the subject!
Edit: They come with 130w bulbs but they also supply you with 150w bulbs to install. They're marketed as a driving/fog light. So who knows. The auction also states at the bottom: These lights are NOT KC Brand lights. They appear to be KC knockoffs to me.
I don't know, I guess if you're willing to give em a shot, the $55 might be worth it!