---Solar road marker with 4 LED and 2 reflectors ---Visible distance: more than 500m ... ,guardrail ,wall ,tower,bridge and son on 1. Solar Panel: 3.5V/78mA, high efficient monocrystalline silicon solar panel. ... . Light Source: using 4 red φ5 red standard LED mixture with reflector in the middle.5. Light Mode: ... Panyu district, Guangzhou,Guangdong,China solar safety light,led warning lamp ,signal light