This UK power supply won't work properly in the US

Credit: Richard Mudhar
article: Travel Adapters and Power abroad 		Other images from this article
US/European travel adapter Use this 100-240V charger abroad with no problem Use this 100-240V laptop abroad with no problem This UK power supply won't work properly in the US This UK charger won't work properly in the US
This UK power supply won't work properly in the US, Richard Mudhar