When choosing COB LED strip lights, there are several factors to consider:

1. Brightness and color temperature: Choose the brightness and color temperature of the LED strip lights based on the specific lighting needs of the space or application.

2. Size and length: Consider the size and length of the LED strip lights to ensure they fit the specific area or application. COB LED strips come in different sizes and lengths to suit any space or application.

3. Voltage and power supply: Choose a voltage and power supply that matches the requirements of the LED strip lights to ensure they work properly and safely.

4. IP rating: Consider the IP rating of the LED strip lights to determine their durability and whether they are suitable for use in wet or humid environments.

5. Dimming and control options: Consider the dimming and control options of the LED strip lights to ensure they can be easily controlled and adjusted to suit lighting needs.

6. Quality and warranty: Choose high-quality COB LED strip lights from reputable manufacturers with embedded warranty, ensuring their longevity and performance.

Overall, take into consideration these factors when choosing the right COB LED strip lights for your lighting project to ensure they provide optimal performance and longevity.