Super bright… sometimes - Cloud Defensive REIN 3.0 1250 Lumens LED Weapon Light

I’ve had this light for two years now, it’s pretty durable and super bright… sometimes. I find myself having to constantly tighten a shim that holds the battery in position. This is a well known problem with atleast the early versions of this light. I’ll pickup the light after it’s been sitting for awhile and only have about 10% brightness. If I smack the light around it’ll get brighter. For the price point this should be reliable.