Low-intensity Type B Double Solar Powered Aviation Obstruction Light is red steady light with min 32cd based on ICAO(Customer use flashing based on customer request).SMY product is awarded tender because of following three main advantages.First,this aviation obstruction light is a ICAO Approved light.ICAO certificate and local aviation authority certificate is best authorized documents in Aviation Obstruction Light,Helipad Light.Second,this light adopt LED Bulb way,so it is so easy for customer to change light source by hand.Third,SMT use at least three years Lithium iron phosphate battery and 20years solar module to make sure light longer service life.