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The LUMA B4 cob led grow light was released in 2017, it's designed for DIY hobby growers, we provide widely optional top brand cob on this light for people to choose, it can be equipped with citizen clu048 1212 cob, cree cxa 3070 cob, cree cxb 3070 cob, cree cxa 3590 cob, cree cxb 3590 cob as well as bridgluex 25x5w led cob. Each cob runs at 60w, driven by UL listed driver, the total actual power consumption is around 320w or 240w, covering 4'x2' grow area, as we use glass lens on each cob, so the coverage and penetration as well as efficiency of this light is brilliant.

LUMA P4 LED Grow Light


  • The earliest launched full white cob led grow light on market in 2017
  • Widely options of top brand cob

  • Citizen 1212/Cree 3070/Cree 3590

  • Wider Coverage for 4'x2'/120cm x 60cm footprint

  • Equivalent to 600W HPS/HID/MH for energy saving

  • Full Spectrum LED Grow Light with 97 CRI

  • 4000k for veg/3000k for bloom

  • Widest covergae and best penetration with glass optic lens

  • 90 degree and 160 degree optic lens for flexible lighting coverage
  • UL Drivers for longer lifespan and better MTBF
  • Quiet fans to make less noise
  • Thicker Heat Sink Reduces Heat by over 50% vs Others
  • Custom Designed Vents for optimal Air Flow
  • Daisy Chain Link Feature Allows up to four Lights on one Cord
  • Environmentally friendly (No Mercury)
  • Six foot Power Cord in 110v US with 220v and International Plugs Available
  • Global Free Shipping 
  • 3 years warranty


LED Configuration (Standard)

  • 4x Top band COB (citizen 1212/cree 3070/cree 3590)



  • Total Coverage 5′ x 3′/150cm x 90cm
  • Core Coverage 4′ x 2′/120cm x 60cm



  • Full Power Draw: 320w
  • PPF: 736 μmol/s
  • Efficiency: 2.3 μmol/J
  • Input Voltage: AC 100-270V


Product Dimensions

  • 35.4″L x 5.5″W x 3.5″H/90cm x 14cm x 8.5cm
  • Weight: 15.4lbs/7kg


Package Includes:

  • 1 x LUMA B4 LED Grow Light
  • 1 x 6ft power cord with international plugs
  • 1 x 6ft extension cord (daisy chain cord)
  • 2 x hanging kits
  • 2 x /8" Heavy Duty Adjustable Grow Light Rope Hanger 


Attention please:

  • Extremely bright, do not look directly at the LED bulbs when the light is on.
  • Indoor use only, not water-proof.
  • Surrounding temperature: MUST less than 50℃.
  • No extra ballast is needed.
  • Can be controlled by Timer.



  • Horticulture LED Grow Lighting
  • Artificial LED Grow Lighting
  • Greenhouse LED Grow Lighting
  • Hydroponics LED Grow Lighting
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  • Indoor LED Grow Lighting



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