Those NBB lights have been sold for at least 15 years, and are quite OK for a relatively compact light. They are sold in Australia as Narva Ultima 175 lights
http://www.narva.com.au/products/browse/ultima-175 .
NBB sell them to brands all over the world, and so far I’ve seen them branded as ABL, Britax, Hamsar, Jeep, Land Rover, Narva, NBB (the Swedish manufacturer), Night Vision and Volvo.
I wouldn’t be at all surprised if other car brands also market them as their own – NBB just change the name plate in the centre of the light for each different brand, but if you look closely at the glass, you can see the NBB name in the coding on it.
The only problem I’ve heard of is with the round versions, because there’s only a single screw holding the light assembly in the casing, if that screw comes out (a common problem on corrugated Australian dirt roads), the glass and reflector of the light falls out and smashes on the road. The trick in Australia with them is to use them with the clear Australian-made Narva covers on all the time, so that if the screw comes out, the cover holds the light’s reflector and glass clamped to the casing. However, clear light covers aren’t legal in all parts of the world. It’s not such a problem with the rectangular versions, which have two screws at the top.
They often come with the bolt reversed so that the bolt is on the outside and the nut on the inside of the casing, but can be reversed so that the bolt’s on the inside – that way the nuts can be replaced with a set of coded lock nuts (such as the Cibie lock nuts), so that the lights can’t be pinched – it’s just a standard 10mm nut, the same as most Cibie and Hella lights use.
Bear in mind that the lamp you linked to is a spot beam, so it’s got a very narrow beam width – NBB/ABL do also make a spread beam version that has quite a good spread, as well as lighting up quite a way ahead.
Being a pencil beam, I imagine these lights (linked above) can be mounted upside down...I believe it's called "pendant" configuration. Would I be correct in this assumption?
Yes - they can be mounted with the bolt at the top (pendant), at the bottom, at either side, or to the rear. I've used a lot of different driving lights over the years (including Cibie and Hella), and the mountings on the NBB-made lights are the most flexible I've come across, although they are a bit fiddly to adjust. You can find info about them at the manufacturer's website, including a product sheet to download
http://www.nbb.se/en/alpha-175 .