Powered by 12 6-volt batteries, the super-efficient LEDs in Northstar’s CMS80F full-matrix message board use minimal amounts of energy, reducing the need for excess solar panels. To maintain visibility in all conditions, the LED’s brightness adjusts automatically with an ambient light sensor. An advanced charge controller boosts charging in cold and low-light conditions and the CMS80F can run up to 30 days without sunlight. An onboard computer controller features a backlit LCD screen and water-tight keyboard.
Solar message board adapts to cold, low-light conditions
September 2, 2003