How many watts (energy) do these ceiling lights use?

LM030588-1 (4-in Square) =11W

LM030591-1 (5-in Round) = 11W

LM030589-1 (6-in Square) = 16W

LM030590-1 (9-in Square) = 19W

LM030593-1 (9-in Round) = 19W