Mian specification： Light intensity：≥2 cd Burning time：≥ 2 h Smoke colour：橙色 Smoke duration time：≥15 min Type：JHL-4 & JHLS-4 Warning： Use for distress signal only. Don't direct outlet to person. Use before the expiry date. Turn on switch,connect line to lifebuoy,fasten nut,take out safety pin. Activating quick release device of life buoy Singnal falls Down and ignites automatically.
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