720 watt LED Grow Light | 720w Grow Light | Dimmable Grow Light Bulb | HB-660 Full Spectrum LED Grow Light - 660 Watt / 720 Watt, 4' x 4' for Plants Full Cycle, Osram Diodes,HPS Replacement

$458.10 $669.00 Save $210.90

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Wattage: 660W

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Warranty guarantee 79f199ed 2a7d 4861 98d4 483090f83a2e

HB-660 LED Grow Light Product Description:

Be confident that you will increase your yields and crop quality with this super bright LED grow light, HB-660! HB-660 is a full spectrum LED grow light meant to provide enough uniform light for a 4’ x 4’ grow space. It features quality components and has some features that make it stand out in the market.

The HB-660 draws true 660 watts from the plug. It is supposed to have an equivalent light output of a 1000-watt HID bulb. The PPF is rated at 1716 μmol/s with almost every photon absorbed by the plant and efficacy at 2.7 umol/J.

HB-700 uses the quality white diodes designed by Cultiuana which cover a wide spectrum of PAR and produce more intense light with fewer watts. It also incorporates the most efficient Osram 660nm diodes that create an ideal spectrum for vegetative and flowering stages.

However, strong and efficient light isn't the only thing Cultiuana is going for. We know uniform coverage is what every grower cares about most when shopping for an LED grow light. To achieve this, our engineers used 8 bars with a foldable design to spread the light evenly over your canopy, including the lowest parts, and algorithmically placed diodes to create a great uniformity of coverage. So with a single light, it's easy to cover all angles of your grow area evenly.

When you check the PPFD chart, you'll see that in a 4×4 growing surface area, the average PPFD reading is 1138 μmol/m2 from a height of 12 inches. It stays consistent in literally every part of the surface area, even when hanging at a low height, it ensures the contribution to the edges and corners.

The onboard dimming knob is accurate in the PAR ranges. It has preset options for 40%, 60%, 80%, 100%, and external control. So by dimming up or down the light, you can fully control the efficiency at any given time.

Have a larger growth? No problem, as 50 lights can be connected through the daisy chain ports and controlled by a single dimmer or controller.

The HB-660 truly doesn't get hotter than the stated maximum operating temperature of 113°F/45°C. The passive cooling mechanism is designed very effectively with heatsinks, so you probably won't need any active fan to cool down the light.

We offer a 7/24 online service, a 5-year limited warranty, which is about the industry average, and a free return for an exchange/replacement.

Best controller for this fixture: HBC-002

Best Features:

  • Full-spectrum led grow light and designed for home & commercial horticulture
  • Driver Box in Middle
  • Dimmer:  40%, 60%, 80%, 100%
  • Input Voltage: 120-277V
  • 0-10V Dim & Manual Dimmer
  • 370pcs LEDs per bar/ 2220pcs in total
  • LED Efficacy: 2.6μmol/J
  • PPF: 1716μmol/s
  • Coverage area: Veg: 5’ x 5’ Flower: 4' x 4'


  • 1 x AC Power Cord 
  • 1 x RJ 14 Wire 
  • 2 x Ratchet Ropes
  • 1 x US adaptor


660W /  720W
Veg: 5’ x 5’ Flower: 4' x 4'
Full Spectrum
2.7 μmol/J
1716 μmol/s / 2016  μmol/s
Mounting Height
At least 12" above the canopy
Max Ambient Temperature
113 °F / 45 °C
Thermal Management
ETL, DLC, CE, UL8800
>50,000 hours 
3 Year Warranty

Voltage & Amperage(660W/720W):

Input Voltage +/- 10% 120 Volts 208 Volts 230 Volts 277 Volts 
Input current at 100% 5.78A / 6.26A 3.29A / 3.55A 2.98A/ 3.18A 2.98A/2.66A

HB-660 LED Grow Light Spectrum:


HB-660 PPFD Charts in 4' x 4' Grow Tent:

6 inch hanging height 12 inch hanging height
ct660 ppfd in hanging 6 inch height ct660 ppfd in hanging 12 inch height
18 inch hanging height 24 inch hanging height
ct660 ppfd in hanging 18 inch height ct660 ppfd in hanging 24 inch height

cultiuana ct 660 ppfd

cultiuana ct 660 hanging height

HB-660 LED Grow Light Product Images:

Cultiuana Wing 8 LED grow light full spectrumCultiuana Wing 8 LED grow light with lights on

cultiuana wing 8 LED grow light seen by side
cultiuana wing 8 LED grow light dimming knob

HB-660 LED Grow Light Product Dimensions (mm):

cultiuana wing 8 led grow light product dimensions

Rest assured, we stand behind our products.

When you buy a light fixture from Cultiuana, you are buying more than a grow light. You're buying the peace of mind that comes with knowing we stand behind our products, with our hassle-free replacement guarantee and lifetime technical support.

If your grow fixture becomes defective due to faulty materials or any quality issue within 5 years from the date of purchase, we guarantee to replace your fixture at no cost to you or you can either ask for a full refund.