... . When BBE LED was promoting energy-efficient LED Countdown Timers in 1998, LEDs represented the only available light source ... year for a comparable incandescent light signal. LED Countdown Timers also offer significant peak demand savings since they operate 24 ... Countdown Indicators, DJS-B-1 Specifications:Model Name: LED Countdown Timers, LED Countdown Meters, LED Countdown IndicatorsModel No.: DJS-B ...