Well... I'm just saying... the weight that you feel pulling your head down from the helmet light up there isn't from the light. It's from the battery! I have a 2 x 18650 battery pack and I have a 4 x 18650 battery pack. Neither goes on my head. The 800L lighthead goes on my helmet and the battery goes in my pocket, and I call it a very nice arrangement. All the power I could want, and I don't have to recharge the battery pack after every trip. With a single cell flashlight or even two cell flashlight you have to keep a close eye on the runtime or run the light on a lower power setting. It is simply unreasonable to expect to find a two ounce all in one light with the runtime, or the power of a 4 x 18650. At any price.