-- 25 or 15 LED lights
-- Optional Size for 1500x750, 2400x1200, 1500x900(Australia), 36x72, 48x96 (USA)
-- Hydraulic cylinder for lift up and down 90/180 degree
-- 25 LED up to 12 sequential arrow display, 15 LED up to 9 sequential
-- Rear warning lamp, dimming function
-- Optional solar panel and battery
-- Reliable control system.