The ultimate lightweight backpacking camp light. A tiny 4 gram chip sits atop a regular alkaline 9-volt battery which acts as body, handle, stand and power source. Two modes: high (75 hours) and low (600 hours). High mode produces about as much light as a candle, only steadier, harsher and whiter. The Pak-LIte is an ideal tent light. You can set down and let it burn hour after hour, night after night. I once ran mine for 48 hours continuously and found no drop off in power. One battery should last the longest thru hike. You can make it last years by substituting a 9-volt lithium battery (200 hours on hi, 1,200 on lo). It’s easy enough to grab it and use it as a torch or map reader as well. Since the 9-volt battery has a long shelf life it makes a pretty good hurricane/emergency light too.