SOLAS approved traditional bulb type lifebuoy light that meets all YA regulations.
Operates via a mercury switch and is very economically priced.
Must be stored upside down - light activates automatically when facing UP in the water.
Includes dual “O” ring lens seals and requires 4 x “D” cell alkaline batteries (not included) to operate the light.
Use ONLY Alkaline batteries Duracell or Energiser type. DO NOT use standard type "D" cell batteries.