Short version: for the price, the quality, and the output of these lights, they are a fantastic option.Long version: These are very well constructed lights, the housing is a heavy cast alloy, which is durable and offers good cooling capability which is important on high output lighting. The lenses are thick polycarb, which will stand up to most abuse that you could throw at them, but does have a tendency to scratch easily, as all poly lenses do. The wiring leads are well sealed via a grommet where it passes through the housing, short of total submersion, I don't see them letting water in. The connectors are near OEM quality and offer waterproofing via o-rings & individual grommets per wire.The light output is above what one would expect for this price range. They are right in the middle as far as the light pattern is concerned, i.e. they don't throw super wide like fog lights, but they're not a narrow beam like a hyper spot. Despite the item details, I would not recommend using these on-road even on the "low beam" mode as there is too much opportunity to blind oncoming traffic, which is obviously hazardous. If you do want to use them as driving lights, PLEASE ensure they're aimed properly. Personally, I only use them in scenarios where I am comfortable using my high beams, and would recommend you do the same.Shortcomings: The included wiring harness is pretty typical of Amazon lights, though it does have the mating Deutsch connector, so that's nice. The fuse and relay are both generic, and the base for the relay is not weatherproofed well. I seal all my bases with 100% silicone sealant because I live in Michigan and the salt destroys everything. The included switch is a touch chintzy, but it will do the job for the time being.