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Please take the time to review these terms and conditions before you place an order for any product.


Product Warranty

Please reference our Product Warranty page for the full terms of our warranty. 


Our Business Name & Credit Card Charges

Charges to your credit card for products that you order from this website will show on your statement as Grow Light Science LLC However some credit card companies abbreviate the name.


Order Placement

You can order our products by browsing our catalog and adding the products you wish to purchase to the shopping cart.


Once you have added the products you want to order to your shopping cart, click on the shopping cart button. You will then be prompted to enter your shipping and payment information.


Upon submission of your order you will be sent a confirmation email detailing the products that you ordered and all invoicing / shipping information. You can also review your order details by logging into your account on our website. If there are any errors or problems with your order, please contact us immediately at


Stock Availability

The lead time projection for order processing  is our best estimate, is not guaranteed and is subject to change or correction.


Postal Shipping Times

Shipping times estimated in the shopping cart. These times are provided by the 3rd party shipping companies, are NOT guaranteed and can take longer on occasion. It has been our experience that while the shipping times provided by the 3rd party shipping companies are usually fairly accurate, there will be occasions where it will take longer. 


LED Binning

Grow Light Science uses average spectroradiometric data for each LED type to estimate fixture performance. Actual photometric results may vary from advertised performance estimates. Actual production LEDs will vary both in spectral content and radiometric flux within the LED manufacturer’s bin tolerance.


Pre-Payment Options

We offer the following pre-payment options:


  • Visa

  • MasterCard

  • American Express

  • Discover

  • PayPal

  • Sezzle

  • Bank or Cashier’s Check


We will debit your credit card for the full purchase amount when you submit your order.


If you pay for your order with PayPal, PayPal will immediately debit your PayPal account for the full purchase amount.


If you pay by Bank or Cashier’s Check, simply mail your check to our address.  Once we receive the payment, we will start processing on your order.


We are unable to accept COD orders at this time.


Term Accounts

Term accounts are available to qualifying organizations. With some exceptions, we typically require a few pre-paid orders to establish order volume and frequency trends before we are able to offer terms. Please contact us for more details.  Our terms are Net 30 and are strictly enforced. We will not be able to process any order if your account is not up to date.


Pricing Information

All pricing is based on US dollars and is subject to change without notice. All charges are invoiced in US dollars and will be converted to your local currency by your credit card company.


Currency Exchange

Charges will be invoiced in US dollars and will be converted to your local currency by your credit card company. Pricing is only guaranteed to be accurate in US dollars.


Shipping Information

All products are shipped FOB from our facility in Troy, MI USA, Corona, CA USA, and Mississauga, Ontario, Canada.


Discount/Free Shipping

From time-to-time we may offer discounted or free shipping based on the purchase value of your order. Our discounted/free shipping offer is only available for orders placed on our website.


Duties, import fees, or taxes assessed by your country’s customs service or customs brokerage fees that are assessed by the carrier are the responsibility of the customer and are not covered by our discounted/free shipping offer.


Shipping & Handling Costs

Shipping costs are based on current rates as published by the specific shipping carrier. To determine the cost to ship your order, simply add items to the cart.


US Orders

We can ship to you via FedEx, UPS, or USPS.


Taxes will automatically be added to orders shipping within Michigan.


International Orders

We will accept International orders from most countries. We can ship to you via FedEx, UPS, DHL Canada Post, and USPS. Duties and brokerage charges may be assessed by your counties customs service and the shipping company, and these charges are the buyer’s responsibility.


Order Processing Time

We will make every effort to ship your order within the lead time projection provided on our website. However, we are unable to guarantee any specific lead/delivery time.



Since we process orders on a first come, first serve basis, we are not able to expedite any orders.  We want to be fair to all customers, and if we expedite one order, it means someone is going to get bumped down the schedule.


Combining Orders

We are not able to combine multiple orders together for shipping. If you need to order additional items, you will need to enter a new order that will be processed and shipped separately. Multiple orders cannot be combined to qualify for our free shipping offer.


Returns & Exchange Policy

If at any time during the first 120 days following delivery of a PROGROW 1800, PROGROW 320, PROGROW 640, PROGROW 850, GROW 200 or GROW 300 product you are dissatisfied, you may elect to return the product for a full refund (excluding shipping--we do not pay return freight cost). A maximum of one  (1) fixture may be returned. Returns are not allowed on more than one fixture per order. Product must be in "like new condition"  (no dirt, marks, scratches, or damage of any kind). Product must be returned with all original packaging and contents. An RMA (return merchandise authorization) must be requested of and issued by Grow Light Science prior to return. For RMA during 120 day satisfaction guarantee, please send an email request to:

For warranty replacements, please send an email to for complete instructions. If approved, our team will issue an RMA (Return Merchandise Authorization) and replacement product will be sent out upon receipt of the defective units. Grow Light Science will either replace or repair the defective unit based upon our discretion. Items returned without an RMA number will be rejected and returned to sender. In situations where replacements are needed prior to the return of defective product, please call us direct at (248) 602-3223 to submit a request. Customers requesting an advance replacement will be required to provide payment information for a replacement unit which Grow Light Science will keep as a pending charge for the original cost of the item. Once we receive the defective item, the unit will be examined for accessories and physical damage. If after review all accessories are present and the unit is in “good” condition, then the pending charge will be voided. If Grow Light Science does not receive the defective unit back within 25 days from the shipment of the replacement, we will formally charge your credit card and the replacement unit will be yours to keep. Exemptions apply.

If you would like to exchange your product, please send email request to:  Product must be unopened. Restocking and return shipping charges apply.


Written quotes (mailed, emailed or faxed) may have modified return/exchange conditions that will supersede this return/exchange policy.


Order Cancellation

If we have not started processing your order, you can cancel without penalty. Once we begin processing, orders may not be cancelled.  To cancel an order, please send an email message to


Product Liability

Grow Light Science’s sole obligation for products that prove to be defective by Grow Light Science’s own evaluation tests will be to repair or replace the products. Outside of our published warranty, Grow Light Science gives no warranty either expressed or implied and specifically disclaims all other warranties, including warranties for merchantability and fitness. In no event shall Grow Light Science liability exceed the buyers purchase price. Nor shall Grow Light Science be liable for any indirect or consequential damage. Notice of possible defective products must be made within 30 days of delivery. This warranty does not apply to products that have been subject to misuse including, but not limited to; the application of a reverse voltage to LEDs, static discharge, overheating, water submersion, accident, modifications, or alteration which makes it impossible for Grow Light Science technicians to test the product. All product warranties are void if the LED fixtures have been opened by the customer.


Further, products sold by Grow Light Science are not authorized for use as critical components in life support devices, systems, nor in medical operating room or life rescue equipment. A critical component is any component of a life support device, system or medical/rescue equipment whose failure to perform can be reasonably expected to cause failure or malfunction of the life support device, system or medical operating room/life rescue equipment.


Grow Light Science is not responsible for the indirect exchange or resale of products to territories that are recognized under Federal or International trade embargos.


Our LED lighting products are extremely bright. Customer should not stare directly into any of the lights. Customer should only use Light Therapy LED fixtures under a licensed doctor’s supervision. GROW LIGHT SCIENCE, NOR ANY OF THEIR EMPLOYEES SHALL NOT BE LIABLE FOR ANY DAMAGES OR LOSSES INCLUDING, BUT NOT LIMITED TO, DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ASSOCIATED WITH USING THE LED LIGHTING PRODUCTS.


Use of our Website

By accessing our website (, you warrant and represent to us that you are legally entitled to do so and to make use of information made available via the website.


External Links

External links may be provided for your convenience, but they are beyond our control and no representation is made as to their content. Use or reliance on any external links and the content thereon provided is at your own risk.


Misprints & Errors

We make every effort to ensure that the information provided on our website is current and accurate. However, misprints, errors, inaccuracies, omissions (including incorrect specifications for products) or other errors may sometimes occur despite our best efforts. Grow Light Science does not warrant that the content of our Website including, without limitation, product descriptions, availability or photographs, is accurate or complete.


Grow Light Science reserves the right to: (a) correct any error, inaccuracy or omission at any time without prior notice or liability to you or any other person; (b) change at any time the products and services advertised or made available for sale on the Website, the prices, fees, charges and specifications of such products and services, any promotional offers and any other Website content without any notice or liability to you or any other person; (c) reject, correct, cancel or terminate any order, including accepted orders for any reason and (d) limit quantities available for sale or sold.


Technical Specifications & Product Information



Technical Advice Disclaimer

It is expressly understood that any technical advice furnished (via email, telephone, blog or any other form of communication) by Grow Light Science or any of its employees with reference to the use of electronic products is given gratis and Grow Light Science assumes no obligations or liability for the advice given or the results obtained. All such advice is given and accepted at the buyer’s risk. If you are not experienced with the use of high powered LEDs and electronics, then we highly recommend that you engage an experienced electronics technician or engineer to provide you with assistance. GROW LIGHT SCIENCE, NOR ANY OF THEIR EMPLOYEES SHALL NOT BE LIABLE FOR ANY DAMAGES OR LOSSES INCLUDING, BUT NOT LIMITED TO, DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR OTHER LOSSES ARISING OUT OF ANY ADVICE PROVIDED.



The entire content included in this site, including but not limited to text, graphics or code is copyrighted as a collective work under USA and other copyright laws, and is the property of Grow Light Science. The collective work includes works that are licensed to Grow Light Science LLC Copyright (c) 2017, Grow Light Science LLC ALL RIGHTS RESERVED.


Permission is granted to electronically copy and print hard copy portions of this site for the sole purpose of placing an order with Grow Light Science or purchasing Grow Light Science products. You may display and, subject to any expressly stated restrictions or limitations relating to specific material, download or print portions of the material from the different areas of the site solely for your own non-commercial use, or to place an order with Grow Light Science or to purchase Grow Light Science products. Any other use, including but not limited to the reproduction, distribution, display or transmission of the content of this site is strictly prohibited, unless authorized by Grow Light Science. You further agree not to change or delete any proprietary notices from materials downloaded from the site.



All trademarks, service marks and trade names of Grow Light Science used in the site are trademarks or registered trademarks of Grow Light Science .



Your use of this site shall be governed in all respects by the laws of the state of Michigan, USA without regard to choice of law provisions, and not by the 1980 U.N. Convention on contracts for the international sale of goods. You agree that jurisdiction over and venue in any legal proceeding directly or indirectly arising out of or relating to this site (including but not limited to the purchase of Grow Light Science products) shall be in the provincial or federal courts located in Michigan, USA. Any cause of action or claim you may have with respect to the site (including but not limited to the purchase of Grow Light Science products) must be commenced within one (1) year after the claim or cause of action arises. Grow Light Science’s failure to insist upon or enforce strict performance of any provision of these terms and conditions shall not be construed as a waiver of any provision or right. Neither the course of conduct between the parties nor trade practice shall act to modify any of these terms and conditions. Grow Light Science may assign its rights and duties under this Agreement to any party at any time without notice to you.


Third-Party Links

In an attempt to provide increased value to our visitors, Grow Light Science may link to sites operated by third parties. However, even if the third party is affiliated with Grow Light Science, Grow Light Science has no control over these linked sites, all of which have separate privacy and data collection practices, independent of Grow Light Science. These linked sites are only for your convenience and therefore you access them at your own risk. Nonetheless, Grow Light Science seeks to protect the integrity of its web site and the links placed upon it and therefore requests any feedback on not only its own site, but for sites it links to as well (including if a specific link does not work).


Terms Of Use

Grow Light Science products are not designed or intended for use in connection with the illegal manufacturing, cultivation, or production of controlled substances. Our products are intended for commercial horticultural and research uses in accordance with applicable law. The lawful and proper use of our products is a condition of their sale.


Any improper use of the Grow Light Science products voids the warranty otherwise provided. Any illegal use of our products could subject the user to severe fines, penalties and/or imprisonment under the law of your jurisdiction. All comments and testimonials presented, in any form, by customers are not the representations of, nor do they represent the opinions of, the manufacturers.


You acknowledge that neither Grow Light Science, nor any of its agents, affiliates, directors, employees and associates may be held liable, responsible or accountable for any type of damage, litigation or other legal action, which may arise either from your legal or illegal use of Grow Light Science products, websites, or consultation, and under no circumstances will you be eligible for any form of compensation from the aforementioned.


We reserve the right to amend and update these Terms and Conditions at any time without notice. Terms & Conditions were last updated on March 1, 2022.

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