Internal solar panels trickle charge "D" cell alkaline batteries to give a superior long lasting more reliable power source.
Yellow/Yellow Lens
Type A (Low-Intensity Flashing) Warning Lights may be mounted on channelizing devices and are used to warn road users during nighttime hours that they are approaching or proceeding in a potentially hazardous area.
Type C (Steady-Burn) Warning Lights may be used during nighttime hours to delineate the edge of the traveled way. When used to delineate a curve, Type C warning lights should only be used on devices on the outside of the curve, and not on the inside of the curve.