These lifebuoy lights are Intrinsically Safe (ATEX Certified) which can be installed on lifebuoys. The light is SOLAS/MED approved and also certified for ATEX & IEC Ex rated at “II 1G Ex ia op is IIC T4 Ga”, which means suitable for hazardous atmosphere Zones 0*,1 &2. It is also rated at remarkable T4, which makes it safe to be used in hazardous atmosphere with gas have auto ignition temperatures≥135℃.