Skip to content
TOUGH JOBS DONE RIGHT: Serious Tools Up to 50% Off. Shop the Deals >
Northern Tool Equipment Logo TextNorthern Tool Equipment Logo text link to Home.

Free Gift Card on All Orders Over $100 See Details

Free Gift Card Details

$100 Order
$10
gift card
$250 Order
$25
gift card
$500 Order
$50
gift card
$1000 Order
$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 10/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.
Print

GT Lite LED Grow Light Bulb — 40.1 PPF, Full Spectrum, 4 Adjustable Panels, E26 Base, 1-Pack, Model# GT-GR-4P40

Item# 6772538
Top Seller
GT Lite LED Grow Light Bulb — 40.1 PPF, Full Spectrum, 4 Adjustable Panels, E26 Base, 1-Pack, Model# GT-GR-4P40

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

GT Lite LED Grow Light Bulb — 40.1 PPF, Full Spectrum, 4 Adjustable Panels, E26 Base, 1-Pack, Model# GT-GR-4P40

Click or Tap image to Zoom

$32.99

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • 900 Lumen LED 30 Watt Replacement for 150 Watt Light of Equivalent Brightness, Saving you 90% Less Energy
  • Uses 90% Less Energy Annually, for a Total Estimated Savings of $ 198 Over the Lifetime of the Product
  • Easy to Use Anywhere: Fits any standard E26 socket, perfect for indoor gardens, herbs, flowers, and hydroponics setups. Indoor/outdoor rated.
  • Plant-Friendly Design: Low heat output keeps plants cooler, reducing water loss and preventing heat stress.
  • Built to Last: Heavy-duty aluminum reflector. Backed by a 1-year warranty for peace of mind.

  • Prop 65 Warning: See Details

See full description

  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Warranty

  • Compare

Product Summary

This plant grow bulb puts out a full spectrum 40.1 PPF grow light, with red and blue light output, great for seedlings, succulent gardens, plant nurseries, and beautiful flowers. The energy-saving LED bulb uses far less energy than a 150-watt incandescent grow bulb of similar output. With a long LED rated life of 15,000 hours, you can be sure that this bulb is using better quality materials and will last longer than other grow lights. The blue light supports vegetative growth, and the red light supports flowering, all of which boost plant growth light regular sunlight. The low heat output helps plant retain moisture by keeping plants cooler. The 4 adjustable panels pivot both up and down, and spin around, allowing you to aim light down from either a pendant or clamp light fixture, or upward from a floor lamp. This light bulb is great for residential or commercial applications and is a product you can trust with a warranty and customer service included.

What's Included

    (1) Grow Bulb

Features + Benefits

  • 900 Lumen LED 30 Watt Replacement for 150 Watt Light of Equivalent Brightness, Saving you 90% Less Energy
  • Uses 90% Less Energy Annually, for a Total Estimated Savings of $ 198 Over the Lifetime of the Product
  • Easy to Use Anywhere: Fits any standard E26 socket, perfect for indoor gardens, herbs, flowers, and hydroponics setups. Indoor/outdoor rated.
  • Plant-Friendly Design: Low heat output keeps plants cooler, reducing water loss and preventing heat stress.
  • Built to Last: Heavy-duty aluminum reflector. Backed by a 1-year warranty for peace of mind.

Key Specs

AttributeSpecification

item#

6772538

Brand

GT Lite

Manufacturer's Warranty

1 year limited warranty

Ship Weight

0.55 LB
AttributeSpecification

Light Bulb Type

LED

Product Weight

0.5500 lb

Dimensions L x W x H (in.)

12.4 x 12.4 x 12.4 in

Reviews

Questions & Answers

Questions

Warranty

Manufacturer's Warranty

1 year limited warranty

Recently Viewed Items

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.