SunMaster 400w Metal Halide Cool Deluxe Bulb


The Sunmaster 400 Watt Metal Halide Cool Deluxe is a “Blue Spectrum” MH lamp that operates on M59 ballasts. The Sunmaster 400w MH Cool Deluxe bulb promotes plant flowering and vegetative growth, and emits a blue, balanced light. The Sunmaster 400 Watt Cool Deluxe produces 30,000 lumens.

  • Blue, natural light
  • Emits 30,000 lumens
  • Designed for seedlings and vegetative growth
  • Operates on M59 ballasts
  • Safely promotes high levels of photosynthesis
SKU: LAM-SM0400CDX Categories: , Tag:

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Find out why Sunmaster Horticultural Lamps have the reputation for being the premier line of grow bulbs on the market today!

Sunmaster Cool Deluxe Grow Lamps emit light from 5000° to 6500° Kelvin, imitating the natural look of daylight. They are an ideal light source for the seedling and vegetative stages of plant growth, while still emitting a wide spectral distribution.

Sunmaster Cool Deluxe Lamps surpass many other HID sources in PAR watts – the most objective measurement of total light energy available for photosynthesis.

Sunmaster Cool Deluxe Lamps set new standards in general plant lighting, promoting high levels of photosynthesis without compromise.

  • Maximum blue for seedling and vegetative growth
  • Sufficient orange-red for stem elongation and flowering
  • Ideal lamp for display purposes
  • Imitates daylight
  • Balanced spectral output
  • Long life

Sunmaster grow lamps consistently deliver new levels of performance in plant growth.

Additional information

Weight 1 lbs

HID Bulb Type

Base Type


Color Temp. (Kelvin)

Spectrum Type


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