The Led Lenser MT10 is perfect in most aspects. It has 1000 lumen brightness (WOW!), really light weight, and has the on/off button located n the barrel, not the butt. The one con is the battery, a 3.7 volt dc 3200 mah, rechargeable battery. It goes long between charges, and they say, it can be charged 1000 times, but replacement is expensive.