Can you adjust the brightness after installation? Calvin Chiu June 07, 2023 09:33 Updated Yes, with an external in-wall dimmer switch. Related articles Where can I find the Slim 15” LED Ceiling Light Manual? What dimmer switches are compatible with this light? Can this be installed on a wall vertically? How long is the manufacturer warranty? I need to replace the shade on my light. Comments 0 comments Article is closed for comments.