The Wolflite Handlamp H-251A is certified under BAS00ATEX2176 , a safety standard for equipment used in potentially explosive atmospheres.
"2176x" is also a identifier in heavy industry and safety equipment documentation:
is used to calculate the gas cost of a transaction based on its workload, where represents the number of 32-byte words (for Comparison Costs: Storage Write (Insert): Storage Write (Update): Storage Read: 200X200 cap X Hash Computation: 2. Industrial and Safety Specifications