Cuttable and linkable: It can be cut every 3 LEDs along the cutting marks, without damaging the rest strips. Waterproof: good for indoor and outdoor applications, Completely smooth for installation convenient Black or White PCB circuit board. The PCB board color won't affect brightness. Flexible strip for easily to bend into any shapes, Super-bright, steady burn, energy saving and long life Self-adhesive back with Adhesive tape for secure and easy application