Specifications:

6W single layer [basic package]]

15W single layer + toilet set [basic package]]

15W double layer + toilet set [upgrade package]]

15W three-layer + toilet set [luxury package]]

25W single layer + toilet set [basic package]]

25W double layer + toilet set [upgrade package]]

25W three-layer + toilet set [luxury package]]

28W double layer + toilet set [upgrade package]]

28W three-layer + toilet set [luxury package]]

Replace 3 cotton [suitable for 15W]]

Replace 3 cotton [suitable for 25W/28w]]

Replace 3 cotton [suitable for 6w]]