Hi everyone,
I’m hoping for some help identifying and possibly adjusting the color temperature and dimmability of my bright white LED strip in my bathroom fixture to make it look less like a hospital.

The lamp is an integrated fixture with a built-in LED strip. After opening it, I found the following details printed on the strip:

Model: AODO - 560mm x 30mm - 2835 - 152S

Color Temps: 2700K ○, 3000K ○, 4000K ○, 5000K ○, 6500K ○ (labeled but not selectable by power cycling or physical switch)

Voltage: 120V AC / 60Hz

Resistors: R1 6R20, R5 9R10, R7 4R70, etc.

Fuse: F1 1A

CRI: RA>80 and RA>90 labeled

Date Code: 20180824

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1. Is there a way to adjust the color temperature on this strip, or could it be locked to a single preset?


2. Based on the specs, is this strip likely dimmable with a standard wall dimmer, or would it require a specific dimming controller?


3. Are there any hidden methods or wiring tricks to access the different CCT options?

 

What I see is that the blue objects in the photo look like rotary switches to me.

 

What I see is that the blue objects in the photo look like rotary switches to me.

Isn't it a varistor VDR?

 

Isn't it a varistor VDR?

That is also a possibility. The image is not in perfect focus.

 

My guess is that color temperature is determined by the SMD LEDs that are installed. I don't see inductors or transformers, so those LEDs are in series, and/or may consist of SMD COBs with multiple LEDs in a single package (I've seen that in a screw-in bulb I examined.). Drivers are probably linear constant-current. If you can identify the chip, the data sheet may say whether they can be dimmed and how.

You could add low-voltage LED strips next to the existing LED panels, or replace the panels with ones that have a different color temperature or more adjustability.

 

Given that the label I see has all of those different choices to be checked, now I am thinking that the assembly is not adjustable. So those LED tubes would be good in the kitchen, where actual correct color recognition matters a lot more..