The best warranty coverage and customer service… PERIOD! After leaving my big UK dive light in storage for several years I found that the batteries and leaked and damaged all of the internal components beyond repair. When I contacted UK they said«send it in and we’ll take care of it. If we can’t repair it we’ll replace it.» My response was that this was my fault and I’d be happy to pay for the service. When I sent it in I got back a BRANDNEW light and it had fresh batteries! I don’t know of any company that offers this type of service. I am a UK customer for life :-)! Oh…and their lights work extremely well too!