I have a cheap Bushnell that uses a single AA battery which lasts a long time and gives out good light, don't know the lumen level. It has a tail switch and that's all it does - on and off. This thing is several years old, has been through both the washer and dryer more than once and just works. The only down side is I had to go to Walmart to get it. I don't know if they still sell them.