Brilliant idea :-)

This product is well designed. The first test was inconclusive.
In fact, these are garlands 5m each with 20 globes (5 LEDs inside).
Ability to add garlands following each other up to 1000 globes.
Adapter with a button to blink or not the globes. The adapter saves the last state (fixed, flashing, ...) to the power failure.
I have not yet tested the external mode with degraded conditions (rain, wind ...) but the product is a priori designed.
I recommend this product for the moment.