Bigblue TDH-04 Helmet Light Mount 3000-Series Square Mount AdapterThe Bigblue TDH 04 Helmet Light Mount is a compact helmet light mount engineered to secure dive lights that use the Bigblue mounting square, offering a stable connection for helmet mounted dive lights. The mount is molded from reinforced engineering polymer to resist corrosion and impact in saltwater environments. Its low profile design reduces snag points while maintaining positive retention under dynamic movement, and the standardized Bigblue