I will say, I replaced the bulbs in both my M9 Kubota's with dual beam LED's. I had a heck of a time finding them but I did finally on Flea Bay of all places. I too have the Stanley headlights but the base is indexed with 2 tabs that fit in the headlight itself that aligns the high and low beams correctly. The work quite well actually but I also have 2 facing forward and 2 facing rear on the top of the cab that replaced the weak halogens. Both in the front are 65 watt draw each LED's, same with the rear and I can see almost across an entire hay field with them on, but then I also have a high output 70 amp alternator. Think I paid 30 bucks each for them from Superbright LED's and they are both in aluminum housings and both are CREE SMD's as well. They are wicked bright too. Had some idiot last year coming at me with his high beams on as I was coming home from a field (roading). I flashed my lights and nothing so I lit him up with the flame throwers..lol He dimmed his lights real quick like. I normally don't use them except in a field but I made an exception. I bet I roasted his eyeballs too.
That brings me to another sore point and that is, these new cars with wicked bright headlights. Hard to see when they have them on but I see the NHTSA is changing the headlight rules for new cars, about time actually. The new HID's and LED's are very hard to deal with, with an oncoming vehicle. Been thinking hard about installing a pair of those flamethrowers in the grill of my car and my pickup truck, just in case...lol Great reminder for idiots that don't know what a dimmer switch is... A quick blast of eyeball cookers would get their attention.