Since around 2 years i am using the Argolamp, particular for my helmet light and as a great back-up light system when my main light for underwater would give me problems.
I am using it as well all the time for surveying and mapping caves which gives me a perfect view to write all my notes. It is a great light and just perfect for multiple sump projects like i do here in Sardinia. So far I went over -120m in depth with it and all the functions and push buttons had no problem.
I will using this light always in my exploration projects for sure and I would not miss it anymore… great light, great idea and great concept… easy and reliable.
Toddy (Thorsten Wälde) Here the Toddy’s website: link