does it work on electricity ? regargeable batteries ? filter out gate ? filter in gate ? other ?

dear Antoine, these are all the information that we were able to get from our supplier, hope this will help to answer most of your questions.

Requires a filter pump with a flow rate between 1,600 - 3,500gph
Attaches to the inlet connector in the pool with a 24'7" hose
For Intex above ground pools with 1-1/2" hose fittings
Not suitable for in-ground pools

Best Regards,
Customer Care.