Added LUT for Tuya T21 (8jz6rasdn7xct1oq) RGB lamp

[maverick1982]

Device information

Tuya T21 RGB lamp
https://www.amazon.it/dp/B09BQ637HP

Feature	Detail
Brand	Hifree
Model Number	021e723a-26d5-4aa1-b112-8e3dc0aec1a2
Style	RGB Color Changing Touch Lamp + Smart Table Lamp Bundle
Color	Multicolor
Light Source Type	LED
Control Method	App, Touch, Voice
Connectivity Technology	Bluetooth, Wi-Fi
Controller Type	Google Assistant, Amazon Alexa
Material	Acrylonitrile Butadiene Styrene (ABS)
Power Source	Corded Electric
Room Type	Bedroom
Mounting Type	Tabletop
Number of Light Sources	4
Age Range (Description)	Kid

Home Assistant Device information

T21 (8jz6rasdn7xct1oq)
da Tuya

Checklist

• I have created a single PR per device. When you have multiple submissions please create separate PR's.
• For lights - I have only included the gzipped files (*.gz), not the raw CSV files.
• For lights - I have provided a CSV file per supported color mode. Look that up in Developer Tools -> States

Additional info

[github-actions]

Thank you for submitting light measurements!
Here are some visualizations for the CSV files.

[bramstroker]

@maverick1982 Thanks for your contribution!

Could you please share the Tuya device diagnostics (Scarica la diagnostica)?
I’m currently cleaning up the library data around naming and model identifiers, and this is a good opportunity to improve consistency for Tuya-based devices as well.

T21 looks like a fairly generic identifier, which may be shared by multiple Tuya products.
The identifier 8jz6rasdn7xct1oq appears to be a Tuya device ID, which is unique per device instance (e.g. adding a second lamp would result in a different ID).

Home Assistant’s code sometimes refers to this value as a product_id, but if that were the case we would normally expect to find some external references to it. The diagnostics should help clarify exactly which identifier this is and allow us to pick a more stable, model-level identifier for the profile.

Thanks in advance!

[maverick1982]

@maverick1982 Thanks for your contribution!

Could you please share the Tuya device diagnostics (Scarica la diagnostica)? I’m currently cleaning up the library data around naming and model identifiers, and this is a good opportunity to improve consistency for Tuya-based devices as well.

T21 looks like a fairly generic identifier, which may be shared by multiple Tuya products. The identifier 8jz6rasdn7xct1oq appears to be a Tuya device ID, which is unique per device instance (e.g. adding a second lamp would result in a different ID).

Home Assistant’s code sometimes refers to this value as a product_id, but if that were the case we would normally expect to find some external references to it. The diagnostics should help clarify exactly which identifier this is and allow us to pick a more stable, model-level identifier for the profile.

Thanks in advance!

This is the device diagnostics
tuya-01JCJY1AN85P2S5RZHCFCNE2G5-Lampada ambiente-18a28a76bf01736a04fa44635e5a6f19.json

[bramstroker]

In the HA json it's also mentioned as product_id.

"product_id": "8jz6rasdn7xct1oq",

Do you happen to have a second one of this device, or you only have one?
When you have a second. Could you verify if it has the same product_id?

[maverick1982]

In the HA json it's also mentioned as product_id.

"product_id": "8jz6rasdn7xct1oq",

Do you happen to have a second one of this device, or you only have one? When you have a second. Could you verify if it has the same product_id?

I'm sorry but I have just one of this so I can't verify the product_id of another one.

[bramstroker]

I think we are allright like this.
Otherwise it wouldn't be called product_id.

[maverick1982]

Yes, I agree Il dom 11 gen 2026, 14:56 Bram Gerritsen ***@***.***> ha scritto:

…

*bramstroker* left a comment (bramstroker/homeassistant-powercalc#3850) <#3850 (comment)> I think we are allright like this. Otherwise it wouldn't be called product_id. Screenshot.2026-01-11.at.14.56.20.png (view on web) <https://github.com/user-attachments/assets/7a442b63-f86e-4e64-b09b-8cd12047ff0e> — Reply to this email directly, view it on GitHub <#3850 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABSDPXT6CTBAT2W66MUOV534GJJCLAVCNFSM6AAAAACRKM4ZNCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTOMZUGU4DMNZRGY> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[bramstroker]

Profile is available now:
https://library.powercalc.nl/profiles/tuya/8jz6rasdn7xct1oq

Thanks for your contribution!