iPower 400 Watt Digital Dimmable Electronic Ballast for HPS MH Grow Light Botanicare - Startup time: allow 3-5

- Startup time: allow 3-5 mins for full bright

RapidStart®

Durability: Our tear-proof thick tent material with over 95% reflective mylar interior returns up to 92-97% of your grow light bulbs’ light back to your plants and herbs

Stable voltage output ensure flicker free light

Fast lamp ignition by lighting up the bulbs within 1-2 mins max

iPower 400 Watt Digital Dimmable Electronic Ballast for HPS MH Grow Light Botanicare - Startup time: allow 3-5Support Dual Voltage Input 120V 240V; Dimmable Options: 50%, 75%, 100%; (Free heavy duty power cord included) Efficiency: High frequency output results in less power loss, 30% more lumens than magnetic ballasts for improved yields Automatically converts between HPS and MH light bulbs by micro chip programming; Fast lamp ignition by lighting up the bulbs within 1 2 mins max; Stable voltage output ensure flicker free light Ultra Safety: Protection