This popular E-ballast has been improved. The Lumatek E-ballast is a performance leader. The LK7240 powers high-pressure sodium lamps only. Lumatek ballasts are available in 250, 400, 600, Dual 600, 750, and 1000W as well as generator friendly 400 & 600W. Up to 20% MORE LUMENS; faster growth, bigger harvests Unique graduated fin design for more efficient cooling Completely pre-wired with popular BAREF lamp cord 3 years full + 2 years warranty Internal Resin coating protects components for long life External breaker system protects against power surges Completely silent Ballast Size: 3-1/2H x 5-1/8W x 12-1/8L

This advanced electronic ballast supports both High Pressure Sodium (HPS) and Metal Halide (MH) bulbs, giving the grower the flexibility to choose the best selection simply by changing the bulb, instead of having to own two separate light systems. MH is used for accelerated vegetative growth, then switch to HPS to encourage flowering, fruiting and budding. Reasons to Choose Digital Electronic Ballast: ? Fast startup - reaches full brightness in less than 1/4 the time of most magnetic ballasts ? Completely silent - no more of the humming and buzzing ? Small, compact design - most electronic models weigh less than 10 pounds compared to 44 pounds for magnetic ballasts ? Longer bulb life - lumen output loss over time is dramatically less than with magnetic ballats ? Electronic ballast lights... Less

What makes Earth Worth ballasts so special? Quality and Performance! Earth Worth only supplies the highest quality hydroponic digital ballasts and systems.  We have searched the world over and partnered with a factory which utilizes the most advanced lighting components which results in a high performance, long lasting, and versatile ballast that will yield superior crops and be around for years to come.  Our ballasts were specifically designed to grow healthy, high producing plants across each phase of their growth cycle.   These ballasts are found in hydroponic research facilities around the country and are used professionally in agricultural research, biotechnology, and pharmacology.  If fast lamp ignition, constant lamp voltage, flicker free output, premium cooling fans, and a... Less

The Powerhouse is packed with features which make it the most advanced electromagnetic HID ballast on the market. With its durable all-aluminum exterior construction and its offset high/low component orientation, it runs quieter and cooler than any other ballast we have ever made. Cool components mean higher performance and longer life, which we guarantee with an 8 year warranty. Coolest running Ultra-quiet with ISO-mount silencer Rugged and durable Dual voltage North American brand components Every unit factory tested 8 year warranty on ballast electrical components U.S. patent D546,282 Air coolable with optional flange kit & fan Compatible with all reflectors offered by Hydrofarm & most others Ballast Size: 11.5 (13.5 w/handle) x 7.5... Less

This Lumatek Digital Ballast works with 400W / 120V - 240V HPS and Metal Halide lamps. From their increased efficiency to their higher lumen output, digital ballasts are the next big leap in indoor gardening technology. Compared to traditional magnetic ballasts, these digital ballasts lose less power from outlet to lamp, provide light at a far more stable level, start up faster (full light in under 1 minute) and reduce the noise a system generates by running silently. Other features: internal RF

Hid Ballast Kit, Core And Coil Ballast Type, High Pressure Sodium Lamp Type, 400 Lamp Watts, 120/208/240/277/4 80 Input Voltage, Number Of Lamps 1, S51 Ansi Code, 450 Input Watts, Min. Starting Temp. -40 Degrees F, 60 Hz, 4 Operating Amps @ 120v, 2.3 Operating Amps @ 208v, 2 Operating Amps @ 240v, 1.7 Operating Amps @ 277v, 1 Operating Amps @ 480v, Insulation Class H, Thermal Protection No, Length 4-3/4 In., Width 3-3/5 In., Height 4-1/4 In.

Input Voltage: Five Tap [120V 208V 240V 277V 480V]Frequency: 60Hz Circuit Type: CWA Bulb Type to Use: 400W HPS, LU400 Reference Part No: S51/400CWA/5T/K 55126

Wouldnt it be great to grow the most perfect, juicy pesticide free tomatoes in the dead of winter? Virtual Sun lighting systems are great indoor grow light kits designed for the beginner as well as the seasoned home hydroponics pro. This kit is perfect for indoor gardening or seed propagation. It not only helps to expedite the growing process of most plants, but also to keep all the growth factors balanced for a thriving harvest. This kit includes all the components you need to easily and quickly set up your own indoor garden to grow flowers and vegetables year round. Virtual Sun Growers Choice Hood The Virtual Sun features an innovative cooling system where air passes directly over the lamp for maximum in-line air cooling. The housing features 6" fittings and a 95% reflective insert for... Less

Hid Ballast Kit, Core And Coil Ballast Type, High Pressure Sodium Lamp Type, 400 Lamp Watts, 120/208/240/277 Input Voltage, Number Of Lamps 1, S51 Ansi Code, 453 Input Watts, Min. Starting Temp. -40 Degrees F, 60 Hz, 3.8 Operating Amps @ 120v, 2.2 Operating Amps @ 208v, 1.9 Operating Amps @ 240v, 1.6 Operating Amps @ 277v, Insulation Class H, Thermal Protection No, Length 4-3/4 In., Width 3-3/5 In., Height 4-1/4 In.

This is Sunlight Supply's highest quality ballast. Sun System 1 ballasts include an aluminum heat sync ballast enclosure, heavy-duty key-way handle in case you want to mount or hang them, major brand such as Advance or Magnetek multi-volt transformer, 8 foot grounded power cord, rubber feet, high temperature capacitor where applicable and technical guide. Major brand ballast Aluminum heat sync ballast enclosure Rubber feet - reduces noise, vibration and provides air flow under the ballast for cool running High temperature capacitor Heavy-duty keyway handle Exclusive MVP™ feature allows user to easily switch from 120 to 240 volt power without the need to rewire the ballast. Simply unplug the detachable 120 volt cord & plug in the 240 volt cord. US Patent Nos: D543941, D544840 & D545764... Less

This popular E-ballast has been improved. The Lumatek E-ballast is a performance leader. Powers both metal halide and high-pressure sodium lamps (except the 750W model, which only powers HPS lamps). Available in 250, 400, 600, Dual 600, 750, and 1000W as well as generator friendly 400 & 600W. Up to 20% MORE LUMENS; faster growth, bigger harvests Unique graduated fin design for more efficient cooling Completely pre-wired with popular BAREF lamp cord 3 years full + 2 years warranty Internal Resin coating protects components for long life External breaker system protects against power surges Completely silent

BHPS0400/QUADTAP/ C/CWA/H/K 120/208/240/277V 60Hz Core and Coil BallastANSI: S51Lamps: (1) 400WCircuit Type: CWAPower Factor: 90% min.Min Ambient Start Temp: -40 degrees FIncludes: Capacitor Ignitor & Mounting HardwareWarranty: 3 years

Hid Ballast Housing, High Bay Housings, Hps Lamp Type, 400 Lamp Watts, 465 Fixture Wattage, 120 To 480 Voltage, Height 12-1/2 In., Width 9 In., Ambient Temp. Range -40 To 131 Degrees F, Mogul Socket Type, No Lamp Included, Match Code A, 3apt6 Suggested Lamp Item No., Cast Aluminum Ballast Housing, White Housing Finish, Pendant Splice Box Mounting Type, Use With 3gu49 / 5ya47 / 3gu51 / 3gu52 / 3ga46, Series Th, Description/speci al Features Probe Start, Standards Ul Listed

Keystone 1 Lamp 400 watt 120/480 volt 5 Tap Magnetic High Pressure Sodium Keystone Ballast Kit (HPS-400A-P-KIT 00170)

Includes Lumatek 400W Ballast and Lumatek 400W HPS Bulb.Lumatek 400W 120/240V HPS/MH E-Ballast• Unique graduated fin design for more efficient cooling• Completely pre-wired with popular BAREF lamp cord• *3 years full + 2 years warranty• Internal Resin coating protects components for long life• External breaker system protects against power surges• Completely silentLumatek 400W High-Par Output HPSLumatek's high-par output lamps are designed by the world's leading HID lamp engineers. These lamps provide exceptional performance on both magnetic and electronic ballasts. 100% European engineered and manufactured Lumatek's high-par output lamps deliver an optimized spectrum and high level of Photosynthetic Active Radiation to promote healthy plant growth. These lamps have strengthened seals... Less

Hid Ballast Housing, High Bay Housings, Hps Lamp Type, 400 Lamp Watts, 465 Fixture Wattage, 120 To 480 Voltage, Height 12-1/2 In., Width 9 In., Ambient Temp. Range -40 To 149 Degrees F, Mogul Socket Type, No Lamp Included, Match Code A, 3apt6 Suggested Lamp Item No., Cast Aluminum Ballast Housing, White Housing Finish, Pendant Splice Box Mounting Type, Use With 3gu49 / 5ya47 / 3gu51 / 3gu52 / 3ga46, Series Th, Description/speci al Features Probe Start, High Ambient, Standards Ul Listed

Wouldnt it be great to grow the most perfect, juicy pesticide free tomatoes in the dead of winter? Virtual Sun lighting systems are great indoor grow light kits designed for the beginner as well as the seasoned home hydroponics pro. This kit is perfect for indoor gardening or seed propagation. It not only helps to expedite the growing process of most plants, but also to keep all the growth factors balanced for a thriving harvest. This kit includes all the components you need to easily and quickly set up your own indoor garden to grow flowers and vegetables year round. Virtual Sun Growers Choice HoodThe Virtual Sun features an innovative cooling system where air passes directly over the lamp for maximum in-line air cooling. The housing features 6" fittings and a 95% reflective insert for... Less

Unique graduated fin design for more efficient cooling Completely pre-wired with popular BAREF lamp cord *3 years full + 2 years warranty Internal Resin coating protects components for long life External breaker system protects against power surges Completely silent

Hid Ballast Housing, Low Bay Ballast Housings Standard, Hps Lamp Type, 400 Lamp Watts, 465 Fixture Wattage, 120 To 480 Voltage, Height 7 In., Width 9 In., Ambient Temp. Range -40 To 104 Degrees F, Mogul Socket Type, No Lamp Included, Match Code J, 3apt6 Suggested Lamp Item No., Cast Aluminum Ballast Housing, White Housing Finish, Pendant Splice Box Mounting Type, Use With 3gu54 / 3gu55 / 3gu56 / 5yb77 / 3ga48 / Pa22c U, Series Tx, Description/speci al Features Probe Start, Standards Ul Liste

The Sun System 6 ballast has all of the features that are incorporated into the Sun System 1 ballast, but adds the ability to run either MH or HPS lamps from one ballast. Just flip the exterior mounted switch to either MH or HPS, screw the appropriate bulb into your reflector, and you’re set. Like the Sun System 1, the Sun System 6 is Sunlight Supply's highest quality ballast. Sun System 1 ballasts include an aluminum heat sync ballast enclosure, heavy-duty key-way handle in case you want to mount or hang them, major brand such as Advance or Magnetek multi-volt transformer, 8 foot grounded power cord, rubber feet, high temperature capacitor where applicable and technical guide. They are available in 400W and 1000W models. All systems are UL, CUL and CSA listed. Major... Less

Use halide for growing and sodium for flowering; all in the same system! Hydrofarm's Powerhouse convertible ballasts feature engineered transformers made to the exacting American National Standards Institute specifications. They are designed to drive either halide or sodium bulbs properly with separate wire leads. They are marked according to UL standards for use with either bulb. We pair this engineered unit with our heavy duty multi-pole switch for the ultimate in safety and reliability - the convertibles you can count on! Transformers engineered to the exacting American National Standards Institute (ANSI) specifications Designed to drive either halide or sodium bulbs properly with separate wire leads 8 year warranty on ballast electrical components Ballast Size: 11.5... Less

New Power Slider feature - switch from 120 volt to 240 volt with easeThe Sun System 10 MH/HPS Switchable Ballast has the ability to run either MH or HPS lamps from one ballast. Simply flip the switch to the appropriate position MH or HPS, screw in the matching lamp and youre set. The Sun System 10 Ballast is Sunlight Supplys economy-priced ballast. Features include a die-cast aluminum housing with white powder coated finish, louvers for cooling and rubber feet. Sun System 10 ballasts all feature quick-disconnect adapters and multi-tap transformers, which means that you can switch them from 120V to 240V in just seconds. Although the Sun System 10 is made in China, its proven track record over the years and 5 year warranty show that it is a solid, reliable ballast. The 15 heavy duty... Less