I bought 2 of the Aurora AK-P7-4 HA-III SSC P7-C 2-Mode 900-Lumen LED Flashlight and was wondering what the waterproof worthyness of such a flashlight is? It has double seals on the battery cap and looks to be sealed everywhere else. The weakest point appears to be the clicky switch in the back which is thin rubber. Has anyone tried these types of lights underwater or diving?