... and indication, Night Rescue equipment ,exit passage and stairway exit lead, temporary outdoor warning sign, reflective rope,shop centre/subway/ ... succor, concert lead line. Description 1) Easy to use, save energy, can light for 4-5 hours with battery once. It ... 4-5 hours for work. Recharge time: 500 times. lead acid storage battery. The burning point of surface PVC tube: 7000CThe visible distance ...