15μ is more than enough for a balcony at a very low price with satisfactory programs. I put them on a smart plug for Christmas and they turned on/off by themselves. A great value for money choice!

Nice visual result, it is what you see and expect to come.
Their cables appear somewhat thin and I'm afraid it will affect their durability over time. Quality-wise, they don't give the best feeling, however, I consider it a good purchase for their price.

I am very satisfied with these bulbs, they are small like bulbs but produce a lot of light. They consume very little electricity and are waterproof according to the IP44 certification written on the box.