... , LED Countdown Meter, LED Countdown Indicator, DJS-A-1 Features:An LED is a semiconductor device that uses solid-state electronics to ... 5-7 years, or longer, compared to just a year for a comparable incandescent light signal. LED Countdown Timers also offer ... Countdown Timers, LED Countdown Meters, LED Countdown IndicatorsModel No.: DJS-A-1 Display Mode: 0-99Power Consumption: ≤ 40WWorking Voltage: 80 ...