Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_23394920_1 ( branding VARCHAR, power_kw VARCHAR, station_type VARCHAR )

### Question ###
When relay is the station type and 5kw is the power kw what is the branding?

### Accurate SQL ###

SELECT branding FROM table_23394920_1 WHERE power_kw = "5kW" AND station_type = "Relay"