QST is an outstanding company. Their help was and is absolutely immeasurable. They went above and beyond the call of duty to help me through a difficult and complex issue I had with my company, Cherry Valley Sign. I am grateful for QST's help and lucky to have them on my side!

John Hu is an expert innovator of LED display technology. He delivers high quality LED video products and services on time with integrity and excellent communication. While John has done an outstanding job with our projects and I look forward to the future projects with him, I also call him my friend. You can count on John to have a professional solution for all of your LED video display needs.

John Hu is an extremely capable and honorable person who is a pleasure to do business with. He has gone above and beyond the call of duty to make sure our church has been well cared for. I recommend him and QST highly.

The sign came in a very strong crate. The wiring inside the cabinet was very clean and systematic. The documentation that came with the sign is outstanding, these guys are more meticulous than what I have seen. The sign was set up in 45mins, the only hiccup was a controller that was damaged during shipping but we had a spare on hand and had no issues.

I've know John through QST for many years. John and I have worked on projects in the Middle East and Africa as well as the US. John has always shown he is a true leader in the industry. He knows the product extremely well, he can advise and offer insights from his vast experiences. I've found John & QST to be very reliable as is the LED products they supply. In 99% of the time everything goes as desired. More importantly when there was a small issue. Both John personally and QST resolved the problem without hesitation and to my satisfaction. For this reason I can whole hardheartedly recommend John & QST for your LED requirements.

John has been very helpful and professional, i will be using his services over and over, love working with him.

We have known John Hu to be an expert in LED and SMD technologies for over a decade. He has introduced us to several innovations and suppliers that have made an impact on our business. John has always been professional and honorable in all of our interactions. MediaNow is pleased to recommend him.

I have been working with John for several years - both as a supplier and as an expert in quality assurance checking our products at factories in Shenzhen before shipment. John is a very straightforward guy who I trust completely - he is great to have on your side!

Mr Hu is an extremely valuable partner in the LED industry. He has reach across the globe and has helped my company implement some sophisticated projects. He is response ready and has many solutions to industry constraints! John is courteous, reliable and very knowledgeable.

I have known John for almost 2 years. His company has provided state of the art digital led products and support for my company. Having a trusting and professional, working relationship with John at QST LED has proved to be very beneficial. I recommend John to anyone looking for the latest technology in the Digital Led sign industry. Feel free to contact me personally for reference.