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1:Non-waterproof Flexible LED Strip: PCB (Printed Circuit Board) material with self-adhesive back.
2:Waterproof Flexible LED Strip--Surface Injection: Except it PCB material is encapsulated with plastic Gel at surface, with self-adhesive back, Water resistant coat (IP65).
3:Waterproof Flexible LED Strip--Silicone Tube: The PCB is enveloped by silicone tube, and with two ends sealed by gel., Water resistant coat (IP67).
4:Waterproof Flexible LED Strip--Whole Injection: Except it PCB material is encapsulated with plastic Gel at both side. Water resistant coat (IP68).

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