I EDC my E2e most of the time and I absolutely love it. I'm interested in getting an LED head for it. I was going for the KL1 when I saw the KL4 available at the shop but for more than double the price of the KL1. I know the KL4 is a 5W compared to the 1W KL1, but do you guys think the KL4 is really worth the money?