"The rated work voltage: DC12V(Permit range DC 10.8~13.8 V) or DC24V(Permit range DC21~27 V).
The length of the light: 1200mm.
The max. lightened bound: > 800LX.
The environment temperature: -40 ℃~ +50 ℃.
Waste currant: <11A
Message Board size: 543x75mm
•High quality LED message board installed on the rear of lightbar
•Stand flashing display for a word less than 10 letters
•Scrolling display for a word over than 10 letters
•Moving display of directional arrow from left side to right side, or from right side to left sides, or from center to both sides
•Mini keyboards and LCD screen for easy operation
•The color of LED clusters on the front of lightbar is optional