10L0L Universal Golf Cart Headlight Push Pull Switch for EZGO, Yamaha, Club Car, Light Button

Is there any warranty with these switches? I repair alot of carts and unfortunately I have not been able to find a decent replacement switch.

I bought the LED headlight, do I need a new switch for it?

how does the button unscrew for installation?

Are those holes on the spade lugs threaded? My club car attaches with screws not push on lugs.