I apologize for the confusion earlier. A "step stair light 52 inch" seems to refer to a type of LED strip light that can be installed along the edge of stairs or steps for illumination and safety.

I would recommend checking online marketplaces or home improvement stores for LED strip lights specifically designed for stairs. When searching for a suitable product, you may want to consider the following factors:

1. Length: Ensure that the LED strip light is long enough to cover the length of your staircase or steps. In this case, 52 inches seems to be the required length.

2. Brightness: Look for a product with a suitable brightness level that provides adequate illumination for your needs.

3. Color temperature: Choose a color temperature that matches your preferences and decor style.

4. Voltage: Ensure that the LED strip light is compatible with the voltage of your electrical system.

5. Quality: Consider the quality of the product, including the durability of the materials, the quality of the LEDs, and any warranty or customer support provided by the manufacturer.

Overall, I suggest researching and comparing different options to find a high-quality and suitable LED strip light for your step stair application.