[Replacement Part Number]: LED Light Engine Board replace Part Number 619818Z, 3525-65. [Compatible]: Compatible with for Intelli-Brite 5G 2nd Generation color LED lights (2009-Present). fits for LED swimming pool & spa lights: 601000, 601001,601002,601003, 601004, 601010, 601011, 601012, 601013. [High Quality]: 619818Z Led Light Engine Board is made of high-quality PCB materials. Professionally tested, this light is not only durability and reliability, but also provide excellent brightness and but also offers excellent moisture resistance for stable performance in underwater environments, ensuring long-lasting use. High efficiency and brightness, making light intensity and color more evenly distributed throughout the pool. [Easy Installation]: Simply remove the nut screw from the single tension wire clamp using a drill or socket wrench, then remove the clamp, lens, and washer, Once the 4 nuts are removed, the circuit board comes out, Disconnect the wiring harness and replace it with the circuit board Color: White Material: plastic Package Contents: 1x Led Light Engine Board Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.