Product description Size: 10mm 4pin L-shape Connector, 10mm 4pin LED strip gapless connector. Installation Instructions: 1. Ensure your section of LED light strip is 10mm wide RGB 5050 LED strip and has four contacts (+, B, R and G) and all the contacts are dry and clean. 2. Open the white clasp of the connector. 3. If you have a waterproof LED strip, you should peel off silicon on the surface around soldering/Cutting line area, then insert the LED light strip into the clasp, with the 4 contacts of the led strip under the 4 prongs of the connector- make sure to match the + side of the strip to the + side of the clasp; If you have a non-waterproof LED strip, just insert the LED light strip into the clasp, with the 4 contacts of the led strip under the 4 prongs of the connector- make sure to match the + side of the strip to the + side of the clasp. 4. Close the clasp. 5. Gently pull the LED light strip to confirm you've made a solid connection. 6. Your connection is successfully made! Notice: Working temperature: 0~40℃ Storage temperature: -20~60℃ PBT Material This connector is made from PBT firproof material, it protect the led strip from fire. Easy to use, tool-free installation. No Need Soldering. Only fit for SMD 5050 LED RGB Strip Light/LED strip in RGBW color. Package Included: 10 PCS 10mm 4pin L-shape Connector 10 PCS 10mm 4pin LED strip gapless connector Warranty Our professional customer service team is ready to solve the after-sales problem for you. Please feel free to purchase it. For any possible defective products, please contact us first. We will do our best to make it right with either a replacement or refund.