My sister and I just discussed these yesterday...she has eight of them, ordered from TV where you buy on and get free///she loves it...needed a longer one, put two 50's together and it worked great....She is ordering two more for the RV. and two more for the garage area....so, I can say they must be good or she wouldn't buy them..all the ones she has purchased were from the TV ad...so can't comment on purchases from other sources.