Master Grower is a brand of VANQ company , If you have any questions, Contact us at



From local warehouses in USA/CANADA/EUROPE: For customers ordering from USA/CANADA/EUROPE, if there is enough stock for the order, we will ship directly from our local warehouses. After payment is received, customer can receive the products in 6-8 days by FedEx, DHL, UPS, etc.

From our factory in China: For customer ordering a quantity more than our local warehouse stock, we will ship directly from our factory in China. The expected whole time from payment confirmed to receiving the products is projected to be 30-40 days by sea shipping. In the case of shipping from China factory, for customer in USA/CANADA/EUROPE, we will also cover the complete cost before arriving at the appointed shipping address, such as shipping, import tariff, tax, etc.


1. Warranty period

  • ALL GLMX Series light fixtures have a standard  FIVE-year limited warranty. Warranty period starts from the date of receiving products.
  • ALL Octopus Series, Octopus X Series, and Matrix Series light fixtures have a standard THREE-year limited warranty. Warranty period starts from the date of receiving products.

This warranty policy does NOT apply to any customized product based on our standard models. The warranty policy of customized products is subject to the contract of the order.

2. Limited Warranty

The warranty as described herein shall only apply to MASTERGROWER branded lighting products sold by MASTERGROWER and the authorized agents. The warranty is only applicable to the party purchasing the products directly from MASTERGROWER and the authorized agents. MASTERGROWER warrants that each Product will be free from defects in material and workmanship. If a product fails to operate in accordance with this warranty MASTERGROWER will provide free replacement of the failed Product subject to the applicable warranty policy and the limited warranty terms and conditions as below.

3. Terms and Conditions

  • If any Product covered by this warranty is returned by Purchaser in accordance with the warranty policy and upon examination, MASTERGROWER determines to its satisfaction that such Product failed to satisfy this warranty, MASTERGROWER will, at its option, repair or replace the Product or the defective part thereof. For purposes of clarity, “repair or replace the Product or the defective part thereof” does not include any removal or reinstallation activities, costs or expenses, including without limitation labor costs or expenses.
  • If MASTERGROWER chooses to replace the Product and is not able to do so because it has been discontinued or is not available, MASTERGROWER may replace the product with a comparable product (that can show small deviations in design and product specification).
  • No agent, distributor or dealer is authorized to change, modify or extend the terms of the limited warranty on behalf of MASTERGROWER in any matter.
  • This limited warranty only applies when the Product has been properly wired and installed and operated within the electrical values, operating range and environmental conditions provided in the specifications, application guidelines, or any other document accompanying the Products. If a Product is found to be defective, or not performing per the product specifications, the Purchaser must notify MASTERGROWER in writing.
  • MASTERGROWER will facilitate the technical resolution of problems. Third-party products sold by MASTERGROWER are not covered under this warranty, except as indicated specifically in agreement.
  • This warranty does not apply to damage or failure to perform arising as a result of any Acts of God or from any abuse, misuse, abnormal use or use in violation of any applicable standard, code or instructions for use including without limitation those contained in the latest safety, industry and/or electrical standards for the relevant region(s).
  • This warranty shall be void in the event in which any repairs or alterations not duly authorized by MASTERGROWER in writing are made to the Product by any person. The manufacturing date of the product has to be clearly readable. MASTERGROWER reserves the right to make the final decision on the validity of any warranty claim.
  • If requested by MASTERGROWER the non-conforming or defective Products shall become MASTERGROWER’s property as soon as they have been replaced.

4. Warranty Claims

All warranty periods mentioned are subjected to MASTERGROWER having enough information of the failed product for verification of non-compliance. Guarantee claims have to be reported to MASTERGROWER within 30 days after discovery, specifying at least the following information (additional info may be required on request):

  • Products failed, for international purchase, pictures and videos are required.
  • Installation date and invoice date.
  • Detailed problem description and number and % of failures, date-code of failure.
  • Application, hours burned and switching cycles.
  • Once a warranty claim is confirmed with a return-and-repair solution. Buyer needs to bear the shipping cost of returning to us. MASTERGROWER will bear the shipping cost of sending the repaired product to buyer. MASTERGROWER may charge Customer for returned Products that are not found to be defective or non-conforming together with the freight, testing and handling costs associated therewith.

5. Notifications

  • Products have to be applied and used in accordance to products specifications and application guides.
  • Compensation for international purchase is product replacement or free parts for all confirmed failures.
  • The LED fixture will be considered defective in material or workmanship only if a total of 15% or more of the individual light emitting diodes in the LED fixture fail to illuminate or any standard finish or coating on a product shows cracking, peeling, excessive fading or corrosion defects during applicable warranty period.
Close (esc)


Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.


Shopping Cart

Your cart is currently empty.
Shop now