I understand they now offer pre-soldered NANO LEDs.
FYI: I can't say enough about their excellent customer service. My order(s) were promptly shipped and received within a few days. Prices and shipping costs are very reasonable.
Now that pre-soldered thing interests me... I've wanted to switch from bulbs to LED's for my structure lighting, but didn't want to try to solder leads to those super small pads on the LED's - this sounds great!