Letter Friend vs ZHCSolar

Set your business apart with the personal touch of truly handwritten letters.

Are you a B2B business?

It costs five times as much to attract a new customer than to keep an existing one. But what have you done to WOW your customers lately?

We'll help you set your business apart with the personal touch of truly handwritten letters.

Our 5-star service, custom-tailored campaigns and competitive prices will keep you — and your customers — coming back for more.

Request a quote at letterfriend.com and we'll mail a beautiful sample letter straight to you!

Engineering background Technology company

ZHCSolar is an integrated manufacturer and R&D Coamny which focus on the renewable energy industry, one business line is off-grid solar products, including MPPT charge controllers, solar panels, inverters, solar battery, Solar Panels, battery equalizers, and other products.

We aim to offer our customers a variety of the latest Solar Charge Controllers. We’ve come a long way, so we know exactly which direction to take when supplying you with high quality yet budget-friendly products. We offer all of this while providing excellent customer service and friendly support.

Location: New York, United States