Fortunately the OP asked about any light option and rather than the lightest option. I have a Luci, but my favorite is the Goal Zero mini-lantern. It weighs 8oz, so many won't see the value, but I find it provides an amazing amount of light for a very long time. I have a light source that will turn night into day if I need to make a gear repair or it can provide enough light to read by or cook or whatever. If I was doing an UL backpack trip, I may not bring the goal zero, but I love it. GZ also makes a light much like the black diamond that will run off a battery bank and are chainable for filling a bigger tent. They come in two sizes if thats what you're looking for. Its called light a life.