Top 10 400w MH Bulb – Plant Growing Light Bulbs

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1. VIVOSUN

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Enhanced Blue and Violet Spectrums CCT 4200K, 36,000 Lumens, VIVOSUN 400 Watt Vegetative Metal Halide MH Grow Light Bulb Lamp

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VIVOSUN #ad - Startup time: allow 2-3 mins for full bright. Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5, 000 hours. After power off, do please wait at least 5 mins before striking again. Optimized blue & violet spectrum and high PAR Photosynthetic Active Radiation to stimulate flower growth and enhance fruiting. 400w vivosun mh bulb compatible with electronic and magnetic ballasts, 36000 Lumens, E39 Base. Lifetime: 24, 000 hours.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad
Height3.55 Inches
Length16.94 Inches
Weight0.5 Pounds
Width3.55 Inches
Part Number3022

2. VIVOSUN

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VIVOSUN 2-Pack 400 Watt Vegetative Metal Halide MH Grow Light Bulb Lamp, Enhanced Blue and Violet Spectrums CCT 4200K, 36,000 Lumens

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VIVOSUN #ad - Lifetime: 24, 000 hours. Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5, 000 hours. 400w vivosun mh bulb compatible with electronic and magnetic ballasts, 36000 Lumens, E39 Base. After power off, do please wait at least 5 mins before striking again. Optimized blue & violet spectrum and high PAR Photosynthetic Active Radiation to stimulate flower growth and enhance fruiting. Startup time: allow 2-3 mins for full bright.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad

3. iPower

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IPower GLBULBM400 400W Grow Light Bulb Metal Halide MH Conversion Lamp for Plants with High PAR Enhanced Blue and Violet Spectrums CCT 6000K

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iPower #ad - Special designed for plant growth: cct 6, 000k, enhanced blue & violet spectrum and high PAR photosynthetic active radiation to stimulate vegetative growth.

New long lasting life with a high lumen output and low energy consumption. Power source type: Corded Electric. Ideal for rapid growth phase of plants. High lumen output: 400-watt, compatible with electronic and magnetic ballast, 36, 000 lumens output, E39 base. Exceptional bulb life: 12, 000 hours. Note: allow 3-5 minutes for full bright. Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5, 000 hours. Greatly accelerates flower growth and enhance fruiting. Please wait at least 5 minutes after power shut off before striking again.
BrandiPower #ad
ManufactureriPower #ad
Height2 Inches
Length11 Inches
Weight0.5 Pounds
Width2 Inches
Part NumberGLBULBM400
ModelGLBULBM400

4. PROTOPIA

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Great for Commercial Applications, 36000Lumens, 6000K, PROTOPIA Metal Halide Grow Light Bulb MH400WT46 MH 400 Watt Growing Lights, for Indoor Plants

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PROTOPIA #ad - Color temp: 6000k, initial par: 500μmol/s, cri:70, base: e39, luminous flux lm: 36000, pulse start capable,LONG LIFETIME: 10000hours lifespan with 1 year warranty. Mimics spring time light, promoting short internomal spacing and lush growth. Great for commerical applications where a large vegetative footprint is required. Allow 3-5 mins for full bright, wait at least 5 min after power shut off before striking again. High quality quartz glass for consistent spectral output and PAR production.
BrandPROTOPIA #ad
ManufacturerProtopia #ad
Height11.8 Inches
Length2.1 Inches
Width2.1 Inches
Part Number160A00005F00
ModelMH400W H6K T46 UPS E39

5. Apollo Horticulture

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Apollo Horticulture GLBMH400 400– Watt Metal Halide MH Grow Light Bulb Lamp

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Apollo Horticulture #ad - Metal halide light Spectrum Stimulates Vegetative Growth. E39 base 400 watt mh bulb compatible with electronic and magnetic ballasts 36, 000 Lumens. Regulation: usa federal standard 21 cfr 104030 + canada standard S OR/80-382. Expected bulb life: 10, 000 Hours Improved Lamp Life and Lumen Output. Color temp: 4200 kelvin, Engineered for plant vegetative growth.
BrandApollo Horticulture #ad
ManufacturerApollo Horticulture #ad
Height2.4 Inches
Length11.8 Inches
Weight0.5 Pounds
Width2.5 Inches
Part NumberAH BULB-MH-400
ModelAH BULB-MH-400

6. iPower

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IPower GLBULBM400A 400W Grow Light Bulb Metal Halide MH Conversion Lamp for Plants with High PAR Enhanced Blue and Violet, Spectrums CCT 6000K, 1-pack

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iPower #ad - Special designed for plant growth: designed specifically for professional hydroponic plant cultivation. Cct 6, 000k, enhanced blue & violet spectrum and high PAR photosynthetic active radiation to stimulate vegetative growth.

Note: allow 3-5 minutes for full bright. New long lasting life with a high lumen output and high power efficiency. High lumen output: 55, compatible with electronic and magnetic ballast, 000 lumens output, E39 base. Exceptional bulb life: 12, 000 hours. Please wait at least 5 minutes after power shut off before striking again. Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 6, 500 hours.
BrandiPower #ad
ManufactureriPower #ad
Height3 Inches
Length13 Inches
Width3 Inches
Part NumberGLBULBM400A
ModelGLBULBM400A

7. iGrowtek

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High PAR Enhanced Blue and Violet Spectrums,CCT 6000K, 400 Watt Metal Halide Grow Lamp,HID Grow Bulb, iGrowtek 400W MH Grow Light Bulb

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iGrowtek #ad - Maintaining over 90% of initial lumen output after running for 5000 hours. Mh400w bulb compatible with electronic and magnetic ballasts, E39 cap base. 6000k blue & violet spectrum and high par photosynthetic Active Radiation to stimulate vegetative growth; Ideal for rapid growth phase of plants; Greatly enhances all-around plant growth to stimulate vegetative growth. Long lasting life 10000 hours with a high lumen output and low energy consumption. Allow 3-5 mins for full bright; Please wait at least 5 mins after power shut off before striking again.
BrandiGrowtek #ad
ManufactureriGrowtek #ad

8. VIVOSUN

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High PAR Enhanced Red and Orange Spectrums CCT 2100K, Ultra Bright 55,000 Lumens, VIVOSUN 2-Pack 400 Watt High Pressure Sodium HPS Grow Light Bulb Lamp

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VIVOSUN #ad - Lifetime: 24, 000 hours. Startup time: allow 2-3 mins for full bright. Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5, 000 hours. Optimized 2100k red & orange spectrum and high PAR Photosynthetic Active Radiation to stimulate flower growth and enhance fruiting. 400w vivosun hps bulb compatible with electronic and magnetic ballasts, 55000 Lumens, E39 Base. After power off, do please wait at least 5 mins before striking again.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad

9. VIVOSUN

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Ultra Bright 55,000 Lumens, VIVOSUN 1-Pack 400 Watt High Pressure Sodium HPS Grow Light Bulb Lamp, High PAR Enhanced Red and Orange Spectrums CCT 2100K

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VIVOSUN #ad - After power off, do please wait at least 5 mins before striking again. 400w vivosun hps bulb compatible with electronic and magnetic ballasts, 55000 Lumens, E39 Base. Optimized 2100k red & orange spectrum and high PAR Photosynthetic Active Radiation to stimulate flower growth and enhance fruiting. Lifetime: 24, 000 hours. Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5, 000 hours. Startup time: allow 2-3 mins for full bright.
BrandVIVOSUN #ad
ManufacturerVIVOSUN #ad
Height3 Inches
Length12 Inches
Weight0.42 Pounds
Width3 Inches
Part Number30210

10. Yield Lab

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Yield Lab MH 400w Lamp HID Bulb

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Yield Lab #ad - See the difference: the spectrum of these bulbs is ideal for the seeding and vegging stages of your grow. Plus, so you can incorporate them seamlessly into whichever setup you’re using. Reduce waste: a color temperature of 5500k is optimized to increase vegetative growth volume with lower temperatures, so that damage in the form of bleached or fried leaves doesn’t slow down your growing process and create waste.

They’ll help your plants build stem and branch strength to create a solid foundation for growth. Satisfaction guarantee: we are proud to be an industry leader in grow equipment and stand by our professional grade products. Powerful intensity: each 400w mh bulb emits 36, 000 lumens of intense blue light, more blue spectrum than other metal halide bulbs on the market.

Multipurpose functionality: all yield labs hid bulbs pass ul and CE testing, they are compatible with both digital and magnetic ballasts, making them safe to use for indoor growing. That’s why we can promise a lifespan of 10, 000 hours and offer a 1 year warranty against manufacturer defects.
BrandYield Lab #ad
ManufacturerYield Lab #ad
Part NumberCU-400MH