This is perfect for your all your indoor lighting projects. This power supply will safely run your 12-volt LED SMD-3528 or SMD-5050 indoor strip lights. It is IP 22 rated for indoor projects only. This 12-volt power supply comes with a bare wire plug and instructions on how to wire it. The max run length for 3528 lights is 88-feet and the max run length for the 5050 lights is 42-feet. Power your project safely and effectively.