400W Lumatek Digital Ballast - Great for MH or HPS bulbs. Has 'Super Lumen' setting, also can be dimmed to 75% or 50%

The LK400 400W digital ballast for MH or HPS lamps

• Electronic ballast for 400W HPS or MH lamp
• Voltage: 120V/240V 50/60Hz
• Current: 3.6A/1.8A
• Input power: 430W
• Output power: 400W
• Power factor: >0.99
• Voltage range: 108 to 264V
• THD: <8%
• Lamp CCF: <1.7
• Operating frequency: high frequency
• No audible noise, no flicker
• Env Temp: -25 to 50°C (-13 to 122°F)
• Enclosure temperature rise (Δt): 35°C (95°F)
• Env IP require: >IP23

Optional selectable dimming levels at 250W and 400W levels.