Thread: LED bars- 'driving lights' vs 'work lights' etc.

Hoping to be schooled on these things- I grew up with halogen driving lights and am totally unfamiliar with the LED revolution- with the exception of having swapped the halogen high-beams on my Jag to LED bulbs that made a big improvement. The different colour light takes some getting used to but that's ok.
I have a pair of big old 'bull lights' on the front of the 130 that I've always been happy with, cost me $20 at a garage sale and totally eclipsed my old Super Oscars. On outback trips, I add a pair of smaller round driving lights to the roof bar, aimed outwards to illuminate the sneaky roos coming at me from the scrub. This works very well, particularly on outback roads where the vegetation is above bullbar level......however I'm thinking that a pair of short LED bars could take the place of the roof lights, they could fit under the bar and not interfere with loading / unloading my canoe. They would need to be no longer than about 250-300mm or they would be under the canoe.
A quick browse online shows that light bars in these shorter lengths tend to be called 'work lights' whereas the ones called 'driving lights' seem to all be 600mm and up.
Is there a difference other than length (and obviously output with less LEDs)? Can anyone point me to a short LED bar with good output (i.e. projected distance and spread) and good price?

A second question; might it be worth putting LED bulbs in my big old bull lights? They have a huge reflector which is great in the halogen world but I don't know if it matters as much with LED.

Something like this would be the minimum I’d look at

7.5 inch Low Profile Slim LED Light Bar