Key Specifications/Special Features:
- Electronic ballast for 250W or 400W HPS or MH lamp
- Voltage: 230V 50/60Hz
- Current: 1.90A
- Input power: 440W
- Output power: 420W
- Power factor: >0.99
- Voltage range: 175~275V
- THD: <8%
- Lamp CCF: <1.7
- Operating Frequency: high frequency
- No audible noise, no flicker
- Envirement temperature for full load operation: -25~40°C(-13~104°F)
- Enclosure temp. rise ((Δt) 29°C (84.2°F)
- Env.IP require: >IP23
- Humidity: capable of operating in relative humidity of 0% to 90%, non-condensing.
- To light a 250W lamp; set control to 250W and boost output by 10% by switching to 250SL.
- To light a 400W lamp; set control to 400W and boost output by 10% by switching to 400SL or dim down to 250SL or 250W.