Got a batteries plus store in town? Get Duracell branded LEDs. B+ warranties them for 5 or 10 years I believe.  

 I'll be picking a set up this week to test out, thank you! It's funny the ones I had list up to 22 years then offers a one year warranty. 

 Looks like they rebranded to ultra last
https://search.app?link=https%3A%2F%2Fwww.batteriesplus.com%2Fproductdetails%2Fled12635&utm_campaign=aga&utm_source=agsadl1%2Cagsadl4%2Csh%2Fx%2Fgs%2Fm2%2F4
5yr warranty