Good product but delivery time too long

N 'buy this kit if you are not in a hurry to have it, because the delivery time is very long !!!
= 15 days for my case (ordered on July 23-August 6 received)
It is shipped from China by China Post.
The package was received in good condition, well packaged (Foam protection against shocks)
For now (after some tests) everything works!
- AV torch with 5 white LED (powered by 4 LR03 batteries not included), medium beam (not too concentrated) - lighting power 5 to 10 m in the dark, with 2 modes (continuous and flashing light)
- AR fire with 5 red LEDs (powered by 2 LR03 batteries not included), which is well seen by motorists at the rear of the cyclist, with 6 modes (fixed, fast flashing, slow flashing chaser (x3) and extinction)
These front and rear lights are interlocked by simply clipping on supports / clamps attaching to the handlebar and on the seatpost. They can therefore be easily removed (to avoid being stolen if the bike is left in public parking)
I have a good impression on the material that gives me satisfaction. Remains to be seen over time how it will behave? But considering the price (the cheapest of all similar kits offered by Amazon, with free delivery), no need to do without, especially if you need it only occasionally, like me ...