I have taken the lamps of the package, simply plugged together, that was done in 15 seconds per lamp. Previously, I've pulled away a security strip specially marked between the batteries. Afterwards I impaled these skewers About 15 clock in our lawn. The day was even mixed ie sun and clouds alternated.
The lights switched on a gene 21.30 clock and burning as I looked at 0.30 clock still. What more do you want?
Easy setup, good investment, beautiful play of colors. For all garden and balcony-owner a great thing. 5 stars with total conviction.