flexible and rigid LED strip: 1. This product adopts a kind of super flexible PCB as base which makes soldering points is steady. The 3528 SMD LEDs are evenly arranged on the board. 2. Every three LEDs as one unit can be cuttable 3. Our special waterproof craft makes the product completely waterproof 4. Self-adhesive 3M label in the back, fix it firmly as your requirement. 5. The 3528 SMD LED have high intensity, large viewing angle, good quality. 6. The PCB size can be custom-made according to the customer’s requirement 7. End of strip is soldered with flying leads for customer wiring use. 8. 5 meters per roll. 9. Each 5 meters need 12vdc and 50watts of transformer