THE-EX has successfully developed the Undersea Exploration Waterproof Light. The pressure resistance test was carried out by the " Institue of Undersea Technology " of a famous university in Taiwan. This experiment was a big success as it shown no influence to the Undersea Exploration Waterproof Light appearance and function after a field test in 250 meters depth undersea. The 26 atm filed test presents high quality standard thatTHT-EX always insists.We shall continue to increase the experiment level in order to make sure the most realiable and highest quality is provided to our valuable customers. The picture of testing sample.