My case
Magic power and icarus works almost same.
5.8ghz can't power up.
2.4ghz 24dbm and 27dbm works same, electric out put power about 100mW .
I'v check ImmerisionRC powermeter.(not refrect power but eletric power)
13channel same power.
Also checked 5.8ghz out put power 6mW.
Sorry bad English.