According to SOLAS Chapter III & LSA Code
> 6 per lifeboat & liferaft
> be contained in a water-resistant casing
> Brief operational instruction on casing
> have a self-contained means of ignition
> not to cause discomfort to the person holding the casing
> burn with a bright RED colour, 5-8 Nautical mile of visibility.
> average luminous intensity of not less than 15,000 cd;
> burning period of not less than 1 min
> continue to burn after having been immersed for a period of 10s under 100 mm of water.