The LM2-0-120 operates on ambient light level sensing. LightMaster is an affordable alternative to expensive or unreliable lighting controls. It is a cost effective solution for providing additional light level control beyond the typical timer or photo control. It can be added to an existing timer. LightMaster offers true dusk-to-dawn operation and can achieve additional energy savings by adjusting light levels throughout the day or night. Additionally, it offers an affordable solution for daylight harvesting. The LightMaster features a delay setting to avoid nuisance ON/OFF switching of lighting during intermittent environmental changes, such as clouds, lightning, or headlights. The LightMaster is essential where activities are impacted by changing and inadequate light levels throughout the day. It will turn lighting ON during inclement weather and OFF when normal light levels resume. The LightMaster is more reliable than photo controls and can save maintenance costs over time.

  • Model Overview
  • Specifications
  • Resources
Temperature Range: Control: -4°F to 131°F (-20°C to 55°C) Sensor: -22°F to 158°F (-30°C to 70°C)
Switch Configuration: SPDT “dry” contacts per circuit
Resistive Rating: 10 Amp, 277 VAC per circuit
Ballast Rating: 8 Amp, 277 VAC per circuit
Output Relay: SPDT dry contacts per circuit
Sensor Variations: LS1 Transparent Sensor 0.2 to 50 Foot-Candles; Transparent case (IP65), LS2 Dark Sensor 10 to 1000 Foot-Candles; Dark UV Filter case (IP65)
Sensor Time Delay: 0 to 100 seconds
Humidity Range: Control: 0 to 95% RH non-condensing Sensor: 0 to 100% RH
Product Ratings
CA Title 20 Listed
Sensor: LS2
Sensor Type: Dark
Foot Candle Range: 10 to 1000 fc
Mounting Type: Type 1 or Type 3R
Timer Included: No

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