Royce Thompson Electric 0.25W Lighting Controller Detector, Cadmium Sulfide, Wall Mount, 230 V ac

COO (Country of Origin): GB

Adjustable 5-1000 Lux

Suitable for internal and external use
Time delay prevents intermittent switching
LED indication of unit operation
Adjustment by potentiometer

Daylight Lighting Controllers

These controllers automatically turn lights 'ON' and 'OFF' in response to changes in ambient light levels, primarily the transition from day to night and vice-versa. The more advanced types (see note below) have inbuilt logic to minimise false triggering, whereas the remainder have inbuilt time delays or higher 'OFF' thresholds, to prevent on/off cycling. As a general rule, these controllers should be sited such that they are not illuminated, by the light they are controlling. Nominal supply voltage is 230Vac.,Note regarding energy-saving negative-hysteresis controllers,Where figures for the 'OFF' threshold are lower than for the 'ON' threshold, the sensor is designed such that four thresholds are actually monitored. These are: dusk, the middle of the night, dawn and the middle of the day. Monitoring at times other than dusk and dawn enables the sensor to determine what it should be looking for next, minimising false triggering and improving overall controller operation.

Attribute Value
Controller Type Detector
Sensor Type Cadmium Sulfide
Voltage Rating 230 V ac
Mount Type Wall
Range Adjustable
Power Consumption 250mW
Time Delay 10 s → 40 s
Length 95 mm
Width 70 mm
Height 51.5mm
22 現貨庫存,可於3工作日發貨。
單價 個
HK$ 654.14
Per unit
1 +