This page looks at equipment in more detail. The recommendations it gives are only personal opinions, and they are only based upon diving in the majority of caves in the area of Quintana Roo in Mexico. When traveling to other areas of the world, the environment and type of diving may require different equipment. Always check first, and never assume that all caves require the same equipment. Here we look at LIGHTS
Without light, we can’t go cave diving. They are extremely dark inside. To exit, we need the line first, and the light second, but without light there is no point in going in in the first place. They are very delicate pieces of equipment, and getting it right is very hard. I have to be honest here, and let you know that my experience with primary lights has not been good. I have gotten myself into many in depth discussions on the science of the internal workings of primary cave lights and I end up not totally grasping the entirety of the science behind it all, but I don’t really need to. I need them to work reliably and regularly, to be easily maintained, and to be cost effective. I am afraid its almost impossible to fulfill all that criteria. This guide to primary lamps is a bit of a rant, but then I don’t profit from them directly and so can afford to tell the truth!!!
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Basically, choose something that works well, is reliable, and feels comfortable for you to use. If it is looked after properly, it should be fine.
