Very nice item, true plug and play. The gauge of the power wire is definitely big enough. Im sure they made the old sealed beams a bit brighter. I've since replaced the main beams with H4 headlights and feel much better knowing the extra amps aren't running through the headlight switch, plus I can actually see at night.
The only bad thing I could say is the supplied plug for the drivers headlight isn't big enough for the gauge of wire.
These really can be easily hidden.