Diving flashlight underwent rigorous testing to evaluate its waterproof performance, including IPX8, salt spray, and diving tests, in accordance with the standards of EC60592:BG/T4208-2017. The testing equipment used was a 200-meter ocean depth simulation device, which simulated a depth of 100 meters underwater under controlled conditions. The test was conducted for a duration of 60 minutes.

1. Waterproof Test (IPX8): The flashlight passed the IPX8 waterproof test without any signs of water ingress or functional impairment. It remained fully operational after being submerged at simulated depths of up to 100 meters for the full 60-minute duration.

2. Salt Spray Test: The flashlight exhibited no corrosion or damage after being exposed to salt mist under the prescribed conditions. This confirmed its resilience to harsh marine environments, ensuring long-term durability even in saltwater conditions.

3. Diving Test: The flashlight demonstrated excellent performance in the diving simulation, with no leakage, malfunction, or deterioration in functionality, effectively withstanding the pressure of 100 meters of simulated water depth for the entire test period.