Payment
You can pay for your order by bank transfer, in HUF or EUR. We will send you a payment request via email, which includes the necessary data for the transfer. If you would like a unique payment method (for example, cash or cash on delivery), select the “Unique payment plan” option and our colleagues will contact you to discuss the details.


Transport
The shipping fee depends on the size and type of the ordered product. For smaller packages, the home delivery fee is 3,790 HUF, for larger products it is 6,490 HUF. For solar panels, batteries and other large products, the delivery is based on an individual price quote, which our staff will always discuss with you after placing the order.

Huawei MERC-1100W-P and MERC-1300W-P optimizers are designed for higher-power solar panels to maximize energy yield and ensure safe operation on a module-by-module basis. They provide balanced system output even when some panels are in the shade or installed at different angles.

The MERC series not only optimizes, but also provides module-level monitoring: the performance of each panel can be monitored separately and errors can be identified precisely. This makes maintenance and troubleshooting faster and easier. In the event of overheating, the device automatically shuts down and restarts after cooling down, thus protecting both the system and the roof.

The main difference between the two types lies in the performance of the solar module:

• MERC-1100W-P: for panels up to 1100 W
• MERC-1300W-P: for panels up to 1300 W

Both are available in short and long cable versions to fit modules with different factory cable lengths:

• Short cable: ideal if the panel output is longer.
• Long cable: practical if the panel terminal is shorter, making wiring easier.

These optimizers are compatible with Huawei's higher-performance SUN2000 inverters and are primarily used in medium to large-scale solar systems.