1. By Installation Method: Recessed downlights and surface-mounted downlights.
2. By Lamp Tube Installation Method: Screw-down lamp holders and plug-in lamp holders; vertical downlights and horizontal downlights.
3. By Location: Residential downlights and commercial downlights.
4. By Number of Light Sources: Single-plug downlights and double-plug downlights.
5. By Fog Resistance: Standard downlights and fog-proof downlights.
6. By Size: 2-inch, 2.5-inch, 3-inch, 3.5-inch, 4-inch, 5-inch, 6-inch, 8-inch, 10-inch.
According to the relevant standards of the U.S. Energy Star certification, the aperture size of a downlight refers to the maximum distance between two points inside the light outlet of the fixture.
7. By Light Source Type: Standard downlights and LED downlights.
Using downlights as lighting fixtures is easy to install, doesn't take up much space, is stylish, durable, and typically lasts for more than five years. The style is also relatively easy to maintain. The price is also inexpensive.