For distress signal on ships,life-boats and life-rafts.
Main specification：
Fired altitude：≥300M
Flare colour：Burn with a bright red colour
Light intensity：＞30000 cd
Burning time：≥40 s
Type：JHR-4
Warning：
Use for distress signal only.
Don't direct outlet to person.
Use before the expiry date.
Other signals：
Two-star red rocket,Five-star red rocket
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