Some of this stuff is not very realistic, "shoot it with a shotgun and 00 Buck? Just a waste of a light, there just aluminum not ballistic plate steel, nothing learned there. :shakehead The washing machine is a good test I have a Quark that passed that one on accident. :thumbsup: Drop test, freezing, high heat test (150F - 200F ? at what point will it overheat or melt solder contacts), impact or shaking, running over with a vehicle. Those things are real world and have some value to a buyer. I could see my wife doing all those things to a light in the first year. Can it hold up to the average depth a person might dive down to retrieve an item using the light 5' 10' 15' 20', anything more than that I could not survive If I have my light in 50' to 100' of water the last thing I'm concerned about is the light.