My final comment is, that the ECO Light Web Site is merely an importer of the same LED products that can be purchased direct from China at a MUCH lower price.
If you visit the web site below, you will find the exact same products at a fraction of the cost listed on ECO Light.
items in WELLS HONGKONG ELECTRONICS store on eBay!
Also, I see that the set you've linked to in your post is using the 3014 SMD LEDs, which are not as efficient or durable as the 5050 SMD IP65 LEDs.
I, and several other Forum members have purchased from WELLS-HONGKONG, and realized fast shipping and transit times.
But, it's your $, and if you feel more comfortable purchasing from a US supplier (even though they are selling a Chinese product), that is your preference.