CREATE TABLE table_64772 ("Band" FLOAT, "Frequency  ( MHz ) " CLOB, "Wavelength" CLOB, "Type" CLOB, "Power  ( W ) " FLOAT)

What Band's Power (W) is 400 or less?
SELECT MAX("Band") FROM table_64772 WHERE "Power (W)" > '400'
SELECT MAX("Band") FROM "table_64772" WHERE "Power (W)" > '400'