1. Quality - When purchasing round die-casting recessed smart panel lights in China, it is essential to consider the quality of the product. Look for a supplier that uses high-quality materials and has a good reputation for producing durable and reliable products.

2. Price - While price is an important factor to consider, it should not be the sole determining factor. Look for a supplier that offers competitive prices without compromising on the quality of the product.

3. Features - Consider the features that are important to you, such as dimming capabilities, color temperature adjustment, and smart controls. Look for a supplier that offers the features you need at a reasonable price.

4. Brand - Consider the reputation of the brand when making your purchase. Established brands with a good reputation are more likely to produce high-quality products than lesser-known brands.

5. Customer Service - Look for a supplier that offers excellent customer service and support. This can be crucial if you encounter any issues with your purchase or need assistance with installation or maintenance.

Round die-casting recessed smart panel lights are a popular choice for both commercial and residential settings due to their energy efficiency, advanced features, and sleek design. The price of these lights can vary significantly depending on several factors, including the material, brand, features, and size. When purchasing these lights in China, it is essential to consider the quality, price, features, brand, and customer service of the supplier. By considering these factors, you can ensure a successful purchase and enjoy the benefits of high-quality round die-casting recessed smart panel lights in your space.