Took a hike yesterday from Black Mountain in Ramona, CA to Sutherland Dam. It's about 13 or 14 miles round trip. It got dark on the way back. Used my Nitecore HC60 headlight on the 1000 lumen high for over half an hour to get past the windy dirt road that cars drive on too fast so I didn't get ran over. Once I got past a footbridge and onto more of a trail, I switched to my Nitecore Tiny Monster TM06s on the 4000 lumen high until the batteries died (one cell over discharged and the light wouldn't turn back on after giving it a break to cool down). This trail is very dark and has mountain lions frequently so you need a lot of light. I switched to my Nightcore E4K and MH10 v2 bungeed together in a figure 8 pattern. (Two bands wrapped around both lights in a configuration where they don't scratch each other). This gave me a max of 2250 lumens with a good balance of spot and throw light. I used this setup for the rest of the trip. The return trip was completed in 2.5 hours and it definitely wore me out.