nostr:npub1aqhzqgeaepyfa24dwf6r9kktlxd08e52ln3fz2mdz8zc92lex7xqg2627f mine all have switches somewhere on the base to set rotation direction along with the pullcords for lights and on/off.  As to less power consumption- no idea.  I believe up/vs down air movement is supposed to be better for temperature control depending on heating vs cooling.  Perhaps that is what they mean.