I looked at your system and I don't think quality control is a problem with Shunyatas and Electraglides unless they make an export version with reverse polarity... I don't know.
Did you use a continuity tester to confirm this? Sorry if this seems painfully obvious, but the two ends match with respect to shape - flat on top and ground on bottom with the left/right terminals matching. Use a continuity tester on a prong/receptacle pair. If they are reversed, I certainly would not use them in my equipment.
For reasons stated above, reverse polarity is an issue and it's not minor. Usually, polarity is not an issue for pure resistive loads such as light bulbs.
Did you use a continuity tester to confirm this? Sorry if this seems painfully obvious, but the two ends match with respect to shape - flat on top and ground on bottom with the left/right terminals matching. Use a continuity tester on a prong/receptacle pair. If they are reversed, I certainly would not use them in my equipment.
For reasons stated above, reverse polarity is an issue and it's not minor. Usually, polarity is not an issue for pure resistive loads such as light bulbs.