basta the safe guide to follow is that if it is an add on light (on the bull bar, nudge bar, bumper, or roof) it is considered an offorad lamp and therefore need to have a cover when driving in city/town, hiway or any paved road in general.

if it is in the headlight assembly, the lto most probably will not bother. BUT the main consideration here is COURTESY TO YOUR FELLOW MOTORISTS. lights that are improperly fitted have too much glare and do not have the proper cut off and aim, blinding others and earning their ire in return.