solar LED flashing light can be installed on sides,port,starboard,stern ... 3.6km-6.3km (2nm-3.5nm)2)Compliance with IALA color(red,white,yellow,green,blue).Turn on at dust ... Can be ordered in steady-on or flash patterns. 8)With built in NiMH battery, easy for replace 9)Integrated ... prolonged and deep immersion (IP68).10)Based on LED technology, and its color complies to IALA Recommendations E-200-1. ...