Ok. So the lamp is rated for the load of the ballast. Here is my wattage of a 1000w hps in a 600w ballast on superlumens. It’s exactly like the speaker example. The speaker is rated for the output of the amplifier. So a 1000w hps in a 600w ballast runs at 600w. A 600w hps in a 1000w ballast will...