Dog - you also get 5 hours on Primary if you prefer, or a week on Minimum if you are trapped in the trunk of a mobster's Caddy. If you are going to be using 60 lumen for more than 20 minutes a day, you may need a different light. We can pick 2 out of 3: very small, very bright, or long runtime. HDS went with the first two. Nothing very bright with long runtime will be the size of your big toe like an HDS.
Of course, R123 batteries greatly mitigate the runtime issues. Stick a new rechargeable in as needed and runtime is not really a consideration. JMO. I change mine about once a week just for giggles.
best regards
me