NextLight 420H Full Spectrum LED Grow Light

ECO Farm


Type: Unknown Type

The NextLight 420h is a high efficiency - bright white LED grow light designed for growers looking to maximize yields in restricted spaces. The NextLight 420h is the most powerful fixture in the NextLight Home Series. The NextLight Home Series is designed for experienced and novice home growers alike. Harnessing the quality and efficiency expected from any NextLight product, including the industry leading 5 Year Full Warranty.

The NextLight 420h has the power and versatility for all stages of plant growth. The Onboard Dimmer allows you to dial in dimming values from 0-100%, giving you precise control over your desired light intensity. The NextLight 420h is ideal for 3' x 3' flower footprint and 5' x 5' veg footprint.

Product Highlights

  • 420 Watts
  • 2.6 PPF/W (μmol/J)
  • IP65 Wet Rated
  • 5 Year Full Warranty - All Components - Down to the Diode
  • Designed for use in restricted spaces and grow tents
  • Flower Footprint: 3' x 3'
  • Veg Footprint: 5' x 5'
  • Onboard Dimming
  • NextLight’s Full Spectrum is recommended from seed to harvest
  • Passively Cooled
  • Plug & Play - contains power cord

    Technical Specifications

    • Input Current 3.5A @ 120V, 1.75A @ 240V
    • Energy Use 420 Watts
    • PPF 1092
    • PPF/Watt 2.6
    • BTU Output 1435
    • Dimensions (in) 25 x 24.75 x 3
    • Dimensions (mm) 631.5 x 628.5 x 71.5
    • Weight 12 lbs (5.44 kg)

    H Series Universal Specifications

    • Operating Voltage 120-277 VAC
    • Operating Frequency 50/60 Hz
    • Operating Temperature  -4ºF to 104ºF (-20ºC to 40ºC)
    • Warranty  5 Year Full
    • Life Rating Q90 > 50,000 Hours
    • Certifications CE
    • Environment IP65 Wet Rated

      Proper Use and Care

      • Hang fixture using supplied fixture Hooks
      • Hang fixture at a minimum of 12" from bottom of fixture to top of plant canopy. Less than 12" distance may burn plants.
      • Always allow for adequate ventilation of Fixtures to ensure your lighting system can properly cool. Failure to do so may shorten the lighting system’s lifespan.
      • Wipe down outside of fixture with a damp rag. Dry thoroughly with a chamois or moist cellulose sponge to prevent water spots. All cleaning should be done with the light system unplugged from its power source.
      • Avoid touching diodes with your hands, even if powered off.
      • Never clean light system with detergents or abrasives.


      NextLight fixtures emit a full spectrum, bright white light which is more sun-like than even your traditional HPS. Using this spectrum you can expect tighter internodal spacing and better overall quality. Contrary to popular beliefs of the past, NextLight continued to pioneer the use of bright white, full spectrum LED, which has now become the gold standard of grow lighting.

      NextLight’s Full Spectrum is easy to work under and provides the same sun-like qualities plants love without the negatives of high energy requirements and high heat.


      Package Contents

      • NextLight 420H Fixture x1
      • NextLight Home Series Power Cord (10') x1

      NextLight Plus Specifications

      Veg Footprint 5' x 5'
      Flower Footprint 3' x 3'
      Power 420 watts
      Light Output 1092 umol/s
      Dimensions 25 x 24.75 x 3
      Weight 12 lbs
      Recommended Height 12" +
      Manufacturer's Warranty 5 years