Grow Light Science Coupons & Verified Deals – August 2026
Looking for the latest Grow Light Science Discount Codes? As of August 2026, our team has manually verified 19 offers for PROGROW 1800, PROGROW 2400, PROGROW 2400 HB. Browse current Coupons, working discounts, and exclusive deals, while expired offers are regularly removed.
Grow Light Science offers 0 coupon codes and 19 deals as of August 2026. Today's top offer: Subscribe & Save: 5% Off Future Accessory Orders. Codes are verified and updated daily.
Enroll in the subscription program to save 5% on subsequent accessory purchases. This applies to selected items.
Business customers can save 12% on qualifying equipment purchases for tax purposes. This promotion runs through December.
New customers can receive a 15% reduction on their initial purchase. This applies to all products storewide.
Purchase a PROGROW 640 light and a master controller together to receive a combined discount. This offer is for a complete system.
Verified students can receive a 10% discount on any grow light purchase. Eligibility requires valid student ID.
During Black Friday, receive up to 25% off on a wide range of products. This includes popular LED grow lights.
A 7% discount is available on all cannabis grow light models for the 4/20 event. This offer is time-sensitive.
The PROGROW 320 models are available from a starting price of $299. Check the website for specific configurations.
The PROGROW 850 model has a 6% price reduction. This offer is applicable for a limited period.
Commercial greenhouse operators can save 18% on large volume purchases. This applies to various lighting systems.
All grow light controllers are 15% off for Cyber Monday. This applies to master controllers and accessories.
Find reduced prices on select lighting hangers. These items are available until stock runs out.
Get an 8% discount on replacement drivers and mounting hardware. This applies to all available parts.
Orders exceeding $500 qualify for complimentary standard shipping. This applies to addresses within the US.
Commercial customers can find savings up to 20% on bulk orders. Contact sales for a custom quote.
Significant discounts are offered for bulk purchases of vertical farming lights. Contact sales for details on large orders.
The PROGROW 2400 HB model is currently priced below $900. This is a special limited-time offer.
Receive a 10% price reduction on the PROGROW 1800 model. This offer is available for a limited time.
Certain grow light models are 5% off during the spring planting season. This includes various full spectrum options.
Customer Reviews
Good value, minor snag
I picked up a PROGROW 850 during a seasonal sale. The price point was competitive, especially for a full spectrum light of this wattage. Delivery was prompt, arriving in about five days. The light itself is well-built and seems to be doing a great job for my cultivation. My only minor gripe was that the included hanging wires felt a little flimsy for the weight of the fixture. I ended up using some stronger ones I already had. Customer service was responsive when I had a question about controller compatibility. Overall, I'm satisfied with the purchase and the performance for the money.
Solid lights, good delivery
I ordered the PROGROW 640 for my home setup. The website was easy to navigate and placing the order was straightforward. Shipping took about 6 business days to reach my address in Florida, which was within the estimated window. The light arrived well-packaged and was simple to unbox and set up. The build quality seems robust, and it's performing as expected for my plants. Haven't needed customer support, so can't comment there, but overall a smooth transaction.
Lights showed up quick
Just got the PROGROW 1800 from here. Ordering it was super easy, like, just a few clicks. It showed up way faster than I thought, within a week. Setting it up was no problem either. My plants are looking good under it. Happy with how it all went down.
Another great light
This was my third purchase from Grow Light Science, this time for a PROGROW 2400 HB. I've bought the PROGROW 640 and some accessories before. Their consistency is a big reason I keep coming back. The ordering process is always the same, delivery is reliable, usually within a week, and the lights have never let me down. I trust their products for my grow space. It's good to know what to expect.
Amazing PROGROW 4800 HB!
I finally got my hands on the PROGROW 4800 HB and it's incredible! The light output is fantastic and my plants are thriving already. Setup was straightforward, and the build quality is top-notch. I can't believe the coverage this thing provides. Seriously impressed with Grow Light Science, their products are truly next level. I'm definitely coming back for more when I expand my setup!
Grow Light Science Community Discussion
Share tips, ask questions & help fellow shoppers save more
thinking about getting a few PROGROW 4800 HB for a commercial space. do they offer bulk pricing for larger orders?
do these lights come with power cords, or do I need to buy them separately? looking at the PROGROW 320.
does grow light science do any black friday or cyber monday sales? wanna snag a couple PROGROW 2400s if they do.
are there any first-time buyer discounts or like, a newsletter signup bonus or something? trying to save a few bucks on a PROGROW 850.
Just wondering about the return policy, like if I get one of the PROGROWs and it's not quite right for my space, is it a headache to send back?
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