Wireless charger for P40 Pro?

My Huawei P40 Pro supports 27 watt wireless charging. The original for 40 euro is too expensive for me. Which wireless charge station can you recommend? I only find 10W chargers. Does it then charge more slowly even though I'm using the original Huawei power supply?

You shouldn't skimp on something like that

Better take the original

Another reason is that the Huawei charger is round and flat. I want one where you can put your cell phone.

Then you will probably have to take one with 10W