Cheap And Discounts 3pcs New Proximity switch XS618B3DAL2 XS618B3DBL2 XS630B3DAL2 XS630B3DBL2 Wholesale. Buy Directly From Merchant Xiaomi Mifun Smart Home Store Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.