I also just bought a 3 pack. What I like about that one is that the power cord is very long and that there's a built in dimmer that's plug and play with smart plugs. Very happy with these.*******Power problem solved. Turns out that there are standard extension cords for string lights that work perfectly with these because they use a standardized connector. I bought a 16 foot extension cord for $9 here on Amazon and that eliminated the need for an extra power supply. I will definitely buy these again now that I know that extension cords are available inexpensively.*****Update from my second order. I bought another set because I have two vases approximately 3 ft apart. But it turns out that there's not enough cord between the two pairs to allow them to be used in that configuration.*****I got the six pack of stems and put them all in one vase. WOW! Nice warm color temperature and plenty of light. If I did the math right these draw up to roughly 25W of power. You can almost light a room with them alone in an apartment. I think three stems would have been plenty bright mixed with like faux cherry blossoms. I put six in one vase in a corner of the dining room and it provides a wonderful glow for the entire room. I really like that there's no remote control. Just plug it in and it lights up. I use a smart plug to manage it and set up a schedule for when I want it lit up since it's too much power consumption to just leave on. But when they're on, they really impress company. It's the first thing they talk about.