Once you get above 1000 lumens, heat dissipation becomes a real problem for compact lights. Most claiming to last for more than an hour or two usually step down before then to cool the light. Also, with multiple batteries required for the level you want, many of the lights will have proprietary batteries to limit the risk of explosion from mismatched cells. You also want high CRI, which means it will draw more power and produce more heat for the brightness level you want. My Nitecore TM06 puts out 1500 lumens for 4 hours on the higher capacity batteries, but that's not high CRI. You might get 2 hours out of something high CRI that is similar, but few products are out there. If you're using this more for camping than hiking, I suggest looking at Milwaukee brand Flash Flood, Rover, and Radius lights. They are 80 CRI and range from 1300 lumens to 9,000 lumens. They do take a proprietary battery but it's a good one that lasts (the better ones are rated for 2,000 charges and go up to 9 amps at 18 volts). The $100 floodlight or Rover put out around 1500 lumens. Runtime will be determined on how good of a battery you get. The 3000 lumen Rover light makes a great floodlight for camp. If you want something more mobile for hiking, you might want to get something custom made.