Please note that we won't be able to process any order with PO Box address for any size of solar panel. Please fill out the form below if you need assistance. You may, however, visit our site anonymously. We also collect information about gift recipients so that we can fulfill the gift purchase. This 20 Amp MPPT solar regulator adopts high quality components with maximum conversion efficiency of 98%. The controller is purchased from Renogy. Contact Renogy Solar Canada. GNC Corporation 300 Sixth Ave. Pittsburgh, PA 15222 Phone: 412-288-4600. To schedule an interview with someone at GNC, please contact:. Company profile for Solar System manufacturer HQST Solar - showing the company's contact details and products manufactured. When ordering or registering, we may ask you for your name, e-mail address, mailing address, phone number, credit card information or other information. HQST Solar is a renewable energy company that prides itself on supplying the best solar products on the market today. I guess the higher cost is compensated for by providing good customer service and better marketing. Each HQST product is manufactured according to the highest quality standards â all while keeping our community and value at the forefront. Reviews. Iâm upgrading my small system and based on Willâs test of the 4 most popular solar panels on Amazon I ordered a 100w HQST panel to connect to my existing Renogy 100w panel (less than 2 â¦ Your order will be shipped within 1 business day once the payment is received. Make sure this fits by entering your model number. HQST supplies solar products for homes, businesses, recreational vehicles, boating, and virtually any application you can think of. The Renogy Solar Panel has the highest number of reviews. We're happy to answer questions or help you with returns. The renogy solar panel is the most expensive of the four panels. It also has a good customer service. The charge controller is optimized for a 12V/24V system; Deep Cycle Sealed (AGM), Gel, Flooded battery option ready. Upon shipment a tracking number will be provided for you. HQST-Solar offers free shipping for all domestic (lower 48 states) orders. ; HQST 100W monocrystalline solar suitcase is a plug and play system. Media & Investor Relations Inquiries H84807s Gigabit Dual Port Network Transformer Filter Class H5014nlh5012nl Large Magnetic Ring Reverse Hqst Factory Direct Sales , Find Complete Details about H84807s Gigabit Dual Port Network Transformer Filter Class H5014nlh5012nl Large Magnetic Ring Reverse Hqst Factory Direct Sales,H84807s Network Transformer,H5014nl Ethernet Transformer,H5012nl Ethernet Isolation â¦ HQST Solar Controller 20A MPPT Controller HQST MPPT Charge Controller applied Advanced Maximum Power Point Tracking (MPPT) technology to help regulate the power from your solar panel to battery with efficiency no less than 99.5%. KEY CONTACTS. Since they are a sister company of Renogy, Renogy helped me on the phone to obtain the necessary battery cable I needed to purchase in addition to the HQST kit (battery cable is not included). It is identical to the HQST panel but about 20 â 30 dollars more expensive. Existing customers should have their account number available when calling. HQST does not have a phone number but they will reply back to your email with questions you have.