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VIVOSUN 2-Pack 400 Watt Vegetative Metal Halide MH Grow Light Bulb Lamp Enhanced
- 400W VIVOSUN MH bulb compatible with electronic and magnetic ballasts, 36000 Lumens, E39 Base
- Optimized blue & violet spectrum and high PAR (Photosynthetic Active Radiation) to stimulate flower growth and enhance fruiting
- 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. After power off, do please wait at least 5 mins before striking again
- Lifetime: 24,000 hours
VIVOSUN MH grow light bulb can produce a very balanced and efficient spectrum for plant growth. VIVOSUN MH lamps have higher luminous efficiency than ordinary bulbs, and they have stronger penetrating power and long service life. It emits an enhanced blue and violet spectrum that is among the most energy-efficient sources of indoor lighting and extends the growing season. It can be used through the stage of plant germination and leaf growth.
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