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Arrived safely in good condition no damage. yet to test it for performance.
I could not get this module to work with 9V input. It requires 10V minimum supply. I was going to use it with a 9V battery, now I must change my plans. Otherwise, it does what it should. Efficiency is well below the maximum claimed 95% for most input voltages. In common with very many low-cost modules, the PCB terminal labelling is poor. You have to take care to make the right connections. But it's a functional little module at a very good price.
All is OK !
Nice
VERY GOOD PRODUCT AND GET FAST