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The Right LED Grow Lights For The Serious Grower

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QBL LED COB Grow Lights

QBL 4 - COB LED Grow Light, 435 Watt - 800 Watt HID Equivalent

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QBL 4 LED COB Grow Light 

The QBL 4 by Quick Bloom Lights, features the latest in COB LED Light Technology, providing you full spectrum grow lights, with use from Seedling, Veg to Flower. Offers MAXIMUM PAR OUTPUT for $with 916 umol/m2/s at center of footprint at 24" !

The Purpose developed Super-Convex Focus Lens optimizes penetration of Canopy enhancing growth and yield. 

QBL 4 has been CE And ROHS approved - most grow lights sold rarely passes any test or regulation, and can cause a serious risk of fire or electrocution. Make sure your light has real backing.

QBL 4 Features:

  • 4 x 90 Watt COB Bridgelux & Epileds.
  • 25 x 5 Watt Bridgelux  LED Diodes
  • Super-Convex Lens Focus, Glass material, for better Canopy penetration and heat resistance.
  • Hanging Kit and Australian Power Cord.
  • 100 % Adjustable Spectrum thru dimmers on Side.
  • 5 Years Manufacturers Warranty.
  • CE, ROHS Approved. 
  • 13 Bands (380NM - 760NM & White), Full PAR Spectrum Incl. Far Red (lower end) and near UV

QBL 6 Light Spectrum


Model: QBL 4 

Power output: 435 watts (draws max 300watt from wall)

HID equivalent: 800 watts


  • 4 x 90-watt BridgeLUX & Epileds COB ( Chip-On-Board )
  • 25 x 3-watt supplemental Bridgelux 

Optics: Super-Convex Lens Focus Technology - BEST IN CLASS

    Spectrum: Full-spectrum - Dimmable Power to Suit all plant stages and strains.

    PAR Output: 916 umol/m2/s at center of footprint at 24"

    Coverage area: 

    • Veg: 7' x 3'    Or 213 x 91 CM
    • Flower: 5' x 3 1/2'   Or 152 x 106 CM

    Thermal management: 2 x cooling fans, heatsinks

    Daisy chain: No

    Operating/input voltage: 85v-260v AC; 50Hz-60Hz

    Dimensions: 430x275x58MM

    Weight: 5.5 KGS

    Recommended height above canopy: 

    • Veg: 24"-36"  
    • Flower: 18"-24"   

    Product includes: LED fixture, 240v power cord, dual channels (COBs or 3W arrays), heavy duty hanging cables, hanging hooks

    Additional info: IP45, CE, RoHS  

    Recommended for:

    • Grow tents
    • Grow rooms
    • Full-cycle growing from seedling, Veg to flower
    • Soil, hydroponic, aeroponic, or aquaponic systems

    Manufacturer's Warranty: 3 years

    Par Readings at various heights


    QBL 4 PAR Value COB LED



    Use of Dimmers :

         Seedling :  Turn on Seedling dimmer; Leave others Off
         Vegetation:  Turn on Seedling & Veg dimmers; Leave Bloom Dimmer Off.
         Bloom:  Turn on Seedling & Veg & Bloom dimmers.
         80%-100% for seedling cycle, 80%-100% for veg cycle, 100% for bloom cycle.



     A few Videos from Users on Youtube:




    Best LED Grow Lights and Hydroponic Supplies

    Quick Bloom Lights offers a quality selection of the best LED Grow Lights in Australia. Commercial and Medical Grade LED Grow Lights with optional Full Spectrum control making your grow return greater. Small time grower or large commercial operation - We deliver grow lights and extended warranty unlike anywhere else in Australia.
    California LightWorks Grow Lights 5 Year Manufacturers Warranty 
    Optic LED Lights  No Longer available / Manufacturers Warranty
    Horticulture Lighting Group (HLG) - Manufacturers 3 Year Warranty - DIY Kits 1 Year Warranty.
    QBL By Quick Bloom  - 3 Year Warranty.
    Replace your old 600 watt HPS today and save 50% on Energy alone, and get greater yield and potency. Hydroponic or Soil Growers, We have your supplies.

    Reviews by Australian Hydroponic Growers :

    Based on 3 reviews Write a review