Input water pressure: 0.01Mpa-0.5MPa. Normal equipment (IPX0), the foot control switch is water proof equipment (IPX1). You get the item safely. We will test all products before the packages were sent out. Return items should include the original packaging and all accessories. Buyers are responsible for the returning cost, and then we will pay for the resending cost. Wish you have a nice day! The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory. Company name: Dreamland Technology Ltd. City, State: Beijing, China. FDA for Curing Light: 510(K) Number: K192233, Regulation Number: 21 CFR 872.6070, Product Code: EBZ. FDA for Handpiece: 510(K) Number: K181691, Regulation Number: 872.4200, Classification Product Code: EFB, Subsequent Product Code: EGS. FDA for Scaler: 510(K) Number: K163414, Regulation Number: 872.4850, Product Code: ELC.