Lumatek 400w Digital Ballast



Simply insert a metal halide or high pressure sodium lamp, turn the switch to specified bulb wattage, and presto! The ballast will automatically know the bulb type and operate your lamp. Use the Super Lumens feature to boost lamp output up to 10% more light at the flip of a switch. This ballast features an internal resin coating to protect components for long life, and an external breaker system to protect against power surges. Dimmable to 50 percent, the Lumatek Dial-A-Watt digital ballast is the ideal choice for any serious grower's indoor garden. Comes standard with a 120v power cord. Purchase a 240v power cord (sold separately) if using a 240 volt power supply.  

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When gardeners upgrade to a Lumatek Digital Ballast, they’ll see the benefits instantly! From their increased efficiency to their increased lumen output, digital ballasts truly are the next big leap in indoor gardening technology. Compared to traditional magnetic ballasts, Lumatek Digital Ballasts lose less power from outlet to lamp, provide light at a far more stable level, start up faster (full light in under one minute!), and run silently, reducing the noise a system generates. These incredibly low-weight ballasts also produce less heat, and a short circuit triggers a power cutoff as a safety measure. As if all that weren’t enough, this 400W Dual Voltage unit allows growers to power with 120V or 240V with one ballast! Each unit includes a 120V power cord. A 240V Power Cord (item BPC140) is available separately.

Dimmable – Dimming can be a great way to deal with heat issues in your garden.

Super Lumens – Up to 10% more light at the crank of a dial. The Super Lumens feature can only be used with the highest rated wattage lamp for your ballast.

Go Green – With each setting on your Dial-A-Watt Ballast, both the input and output power change. This is a great feature if you want to save energy when your plants are young and you need less light.


• Dimmable with SUPER LUMENS SWITCH!
• Dual voltage – 120/ 240 volt
• Completely silent (no humming, no vibration)
• Small compact design – under 16 lbs.

Comes standard with a 120v power cord. Purchase a 240v power cord (sold separately) if using a 240 volt power supply.

14 Day money back guarantee


Weight 10 lbs

Lamp Drive Frequency

Product Category

Grow Lights

Ballast Component Type

Output Control


HID Type


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