Hello, I recently ordered some smart bulbs from AliExpress: The brand is Gleco. Smart Bulb 15W RGB+2700~6500K AC 85-265V 50/60Hz It seems they're pretty straightforward to work with. They have the CB2L module. P6 PWM 3 P7 PWM 2 P8 PWM 1 P24 PWM 5 P26 PWM 4 I wrote an article on my blog about it:

Name: Exploring Gleco Smart Bulb 15W RGB+2700~6500K from AliExpress: CB2L Module, PWM Details
Uploaded: 2023-10-20T08:46:30+02:00
Description: Hello, I recently ordered some smart bulbs from AliExpress: The brand is Gleco. Smart Bulb 15W RGB+2700~6500K AC 85-265V 50/60Hz It seems they're pretty straightforward to work with. They have the CB2L module. P6 PWM 3 P7 PWM 2 P8 PWM 1 P24 PWM 5 P26 PWM 4 I wrote an article on my blog about it:

Thank you, that's a very nice and detailed blog post. Can you also paste here JSON template from OBK Web App? Added after 46 :BTW: You can get GPIO roles automatically that way:

Of courseCode: JSONLog in, to see the code Added after 1 [hours] 14 [minutes]:Some photos of the packaging:

I am using similiar bulbs, also on BL602 chipset, and control them in groups via Tasmota Device Groups system:

I am trying to use tuya-cloudcutter. But couldn't find Gleco in the list of manufacturer names. Any idea how to go about it - select another manufacturer or create a custom device.json, combined.json, profile.json?

Tuya Cloudcutter profile can be created from firmware dump. If you don't have a flash dump, you can use wired method:

I have exactly the same bulb. I've managed to unsolder but not yet braved re-soldering. my dump and info Code: JSONLog in, to see the code Code: text Expand Select all Copy to clipboard Device configuration, as extracted from Tuya: - LED Green (Channel 2) on P7 - LED Cool (Channel 4) on P26 - LED Blue (Channel 3) on P6 - TODOpwmhz - LED Red (Channel 1) on P8 Device seems to be using CB2L module, which is using BK7231N. And the Tuya section starts, as usual, at 2023424 I'm following that same video for tips

finally came back to this bulb. I had soldered it back on and it didn't work, so got annoyed and left it for a couple of months. I resoldered it today and removed two capacitors closest to the CB2L to check solder hadn't dribbled everywhere. a good clean, resolder and a cautious power-on saw it connect to my network! @synergy4489elektroda where did you get P24 PWM 5 from? If I analyse my bin in BK Easy Flash I get this output Code: text Expand Select all Copy to clipboardDevice configuration, as extracted from Tuya: - LED Green (Channel 2) on P7 - LED Cool (Channel 4) on P26 - LED Blue (Channel 3) on P6 - PWM Frequency5000 - LED Red (Channel 1) on P8 Device seems to be using CB2L module, which is using BK7231N. And the Tuya section starts, as usual, at 2023424 I only see 1 other device with a matching template in the device list PR to add to device list

The Tuya Config detector may be sometimes faulty. Maybe in this case it has omitted the missing PWM? Please try anyway. If it;s the device from the first post, then indeed there are warm white and cool white diodes.

yes, forgot to mention. it is correct with P24 and P26 present. identical device

Okay, so that's clear now. Thank you for submitting template, I am very happy with your recent activity! Please keep it on! It's very hard to maintain a large project like OBK just by myself, any help is welcome. PS: I am also doing teardowns all the time, but some of them first go to our Polish site, see sample here, but I will enable them for our com site soon as well. PS2: Hmm it seems I need to add a space here: Code: text Expand Select all Copy to clipboard - PWM Frequency5000

Exploring Gleco Smart Bulb 15W RGB+2700~6500K from AliExpress: CB2L Module, PWM Details

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#1 20763656 08 Oct 2023 21:53

synergy4489elektroda synergy4489elektroda

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Topic author

Post #1
20763656 08 Oct 2023 21:53

Hello,
I recently ordered some smart bulbs from AliExpress: https://www.aliexpress.com/item/1005005481268886.html

The brand is Gleco.
Smart Bulb 15W RGB+2700~6500K
AC 85-265V 50/60Hz

It seems they're pretty straightforward to work with. They have the CB2L module.

P6 PWM 3
P7 PWM 2
P8 PWM 1
P24 PWM 5
P26 PWM 4

I wrote an article on my blog about it:
https://cheriches.com/smart-home/2023-10-07-the-anatomy-of-a-smart-bulb.html
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#2 20763709 08 Oct 2023 22:36

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #2
20763709 08 Oct 2023 22:36

Thank you, that's a very nice and detailed blog post. Can you also paste here JSON template from OBK Web App?

Added after 46 [seconds]:

BTW: You can get GPIO roles automatically that way:
https://www.youtube.com/watch?v=WunlqIMAdgw&ab_channel=Elektrodacom

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
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#3 20763717 08 Oct 2023 23:58

synergy4489elektroda synergy4489elektroda

Level 4

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Post #3
20763717 08 Oct 2023 23:58

p.kaczmarek2 wrote:
Can you also paste here JSON template from OBK Web App?

Of course

Code: JSON
Log in, to see the code

Added after 1 [hours] 14 [minutes]:

Some photos of the packaging:
#4 20763774 09 Oct 2023 00:05

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (+1)

Post #4
20763774 09 Oct 2023 00:05

I am using similiar bulbs, also on BL602 chipset, and control them in groups via Tasmota Device Groups system:
https://www.youtube.com/watch?v=e1xcq3OUR5M&ab_channel=Elektrodacom

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#5 20777419 20 Oct 2023 04:56

IronManIronMan IronManIronMan

Level 1

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Post #5
20777419 20 Oct 2023 04:56

I am trying to use tuya-cloudcutter. But couldn't find Gleco in the list of manufacturer names. Any idea how to go about it - select another manufacturer or create a custom device.json, combined.json, profile.json?
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#6 20777529 20 Oct 2023 08:46

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #6
20777529 20 Oct 2023 08:46

Tuya Cloudcutter profile can be created from firmware dump. If you don't have a flash dump, you can use wired method:

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
ADVERTISEMENT
#7 20858805 12 Dec 2023 23:04

divadiow divadiow

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Post #7
20858805 12 Dec 2023 23:04

I have exactly the same bulb. I've managed to unsolder but not yet braved re-soldering.

my dump and info

Code: JSON
Log in, to see the code

Code: text Expand Select all Copy to clipboard
Device configuration, as extracted from Tuya: - LED Green (Channel 2) on P7 - LED Cool (Channel 4) on P26 - LED Blue (Channel 3) on P6 - TODOpwmhz - LED Red (Channel 1) on P8 Device seems to be using CB2L module, which is using BK7231N. And the Tuya section starts, as usual, at 2023424

I'm following that same video for tips https://www.youtube.com/watch?v=2e1SUQNMrgY

Attachments:

boot.txt (9.23 KB) You must be logged in to download this attachment.

readResult_BK7231N_QIO_gleco_oem_bk7231n_light_ty__2023-12-12-21-53-31.bin (2 MB) You must be logged in to download this attachment.
#8 20950104 07 Feb 2024 18:13

divadiow divadiow

Level 38
Helpful post? (0)

Post #8
20950104 07 Feb 2024 18:13

finally came back to this bulb. I had soldered it back on and it didn't work, so got annoyed and left it for a couple of months.

I resoldered it today and removed two capacitors closest to the CB2L to check solder hadn't dribbled everywhere. a good clean, resolder and a cautious power-on saw it connect to my network!

@synergy4489elektroda where did you get P24 PWM 5 from? If I analyse my bin in BK Easy Flash I get this output
Code: text Expand Select all Copy to clipboard
Device configuration, as extracted from Tuya: - LED Green (Channel 2) on P7 - LED Cool (Channel 4) on P26 - LED Blue (Channel 3) on P6 - PWM Frequency5000 - LED Red (Channel 1) on P8 Device seems to be using CB2L module, which is using BK7231N. And the Tuya section starts, as usual, at 2023424

I only see 1 other device with a matching template in the device list

PR to add to device list https://github.com/OpenBekenIOT/webapp/pull/7...mits/3c46208e4ce46c99ac81e6ed620e95ea2e7ca8a7
#9 20950124 07 Feb 2024 18:26

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (0)

Post #9
20950124 07 Feb 2024 18:26

The Tuya Config detector may be sometimes faulty. Maybe in this case it has omitted the missing PWM? Please try anyway. If it;s the device from the first post, then indeed there are warm white and cool white diodes.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#10 20950128 07 Feb 2024 18:28

divadiow divadiow

Level 38

Helpful post? (0)

Post #10
20950128 07 Feb 2024 18:28

yes, forgot to mention. it is correct with P24 and P26 present. identical device
#11 20950178 07 Feb 2024 19:06

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home
Helpful post? (+1)

Post #11
20950178 07 Feb 2024 19:06

Okay, so that's clear now. Thank you for submitting template, I am very happy with your recent activity! Please keep it on! It's very hard to maintain a large project like OBK just by myself, any help is welcome.

PS: I am also doing teardowns all the time, but some of them first go to our Polish site, see sample here, but I will enable them for our com site soon as well.

PS2: Hmm it seems I need to add a space here:
Code: text Expand Select all Copy to clipboard
- PWM Frequency5000

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.
#12 21005682 15 Mar 2024 21:00

sergiopoverony sergiopoverony

Level 5
Helpful post? (+1)

Post #12
21005682 15 Mar 2024 21:00

place to autoexec.bat for auto power on lamp same tuya

Code: text Expand Select all Copy to clipboard
Power ON backlog led_temperature 320 Dimmer 100 led_enableAll 1
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Topic summary

✨ The discussion revolves around the Gleco Smart Bulb 15W RGB+2700~6500K, which features the CB2L module and operates on AC 85-265V. Users share insights on configuring the bulb, including a JSON template for the OBK Web App, detailing its PWM pin assignments. Some participants discuss their experiences with similar bulbs using the BL602 chipset and Tasmota Device Groups. Issues with using Tuya Cloudcutter for device configuration are raised, with suggestions for creating custom profiles. Users also share their experiences with soldering and troubleshooting the bulb, including successful network connections after repairs. The conversation highlights the technical specifications and community support for smart bulb modifications.

FAQ

TL;DR: 15W Gleco RGB+CCT bulbs run a CB2L module—“They have the CB2L module.”—with PWM on P6/P7/P8/P24/P26 for easy OBK setup. [Elektroda, synergy4489elektroda, post #20763656]

Why it matters: This FAQ helps tinkerers, OpenBeken/Tasmota users, and buyers map pins, flash safely, and fix detection or soldering issues.

Quick Facts

Power/voltage: 15W, AC 85–265V 50/60Hz; RGB + 2700–6500K CCT. [Elektroda, synergy4489elektroda, post #20763656]
Module/SoC: CB2L board with BK7231N; ready-to-use OBK JSON template posted. [Elektroda, synergy4489elektroda, post #20763717]
PWM pins: P6→PWM3, P7→PWM2, P8→PWM1, P24→PWM5, P26→PWM4. [Elektroda, synergy4489elektroda, post #20763656]
PWM frequency: 5000 Hz from Tuya config analysis. [Elektroda, divadiow, post #20950104]
Firmware color mode: rgbcw (RGB + dual white channels). [Elektroda, divadiow, post #20858805]

What hardware is inside the Gleco 15W smart bulb?

It uses a CB2L Wi‑Fi module running the BK7231N SoC. An OpenBeken Web App JSON template was shared, confirming vendor, board, chip, and PWM pin roles. This makes configuration straightforward after flashing. You can import the template to speed setup. [Elektroda, synergy4489elektroda, post #20763717]

What are the PWM pin assignments on the CB2L for this bulb?

The reported mapping is: P6 → PWM3, P7 → PWM2, P8 → PWM1, P24 → PWM5, and P26 → PWM4. This covers RGB plus two CCT channels. Use these roles when creating the OpenBeken template or manual GPIO mapping. [Elektroda, synergy4489elektroda, post #20763656]

Which pins drive RGB and which drive CCT on this model?

Tuya config analysis indicates RGB on P8 (Red), P7 (Green), and P6 (Blue). It shows Cool White on P26 (Channel 4). A second white channel is present in the template for dual CCT control. [Elektroda, divadiow, post #20858805]

Why does my tool show only four PWM channels instead of five?

The Tuya config detector can miss one PWM channel on this bulb. “Tuya Config detector may be sometimes faulty.” If it’s this model, it has both warm and cool white diodes. Manually add the missing PWM channel in your template. [Elektroda, p.kaczmarek2, post #20950124]

What PWM frequency does the Gleco bulb use?

Analysis of the Tuya configuration shows a PWM frequency of 5000 Hz. This high frequency reduces visible flicker and improves dimming smoothness. Set your controller accordingly if customizing drivers. [Elektroda, divadiow, post #20950104]

Is there an OpenBeken JSON template for quick setup?

Yes. A JSON template lists: vendor Gleco, board CB2L, chip BK7231N, and pin roles for all five PWM channels. Import it into the OBK Web App, then adjust any cosmetic fields, like image links or keywords. [Elektroda, synergy4489elektroda, post #20763717]

Tuya-Cloudcutter doesn’t list Gleco. How do I flash it?

Create a Cloudcutter profile from a firmware dump. If you lack a dump, use the wired flashing method demonstrated by the maintainer. This path avoids waiting for a pre‑made profile. [Elektroda, p.kaczmarek2, post #20777529]

How do I set the bulb to auto power on with defaults in OpenBeken?

Use autoexec.bat.

Create or edit autoexec.bat in the filesystem.
Add: Power ON; backlog led_temperature 320; Dimmer 100; led_enableAll 1.
Save, then reboot the device to apply at each startup. [Elektroda, sergiopoverony, post #21005682]

Does this bulb support both warm and cool white channels?

Yes, the device includes both warm and cool white diodes alongside RGB. As one expert noted, “there are warm white and cool white diodes.” Configure both PWM channels to unlock full tunable white control. [Elektroda, p.kaczmarek2, post #20950124]

Can I group-control these bulbs with Tasmota?

Yes. The maintainer reports using similar bulbs with Tasmota Device Groups. “Control them in groups via Tasmota Device Groups system.” This enables synchronized on/off and color scenes. OpenBeken devices can interoperate at the MQTT level. [Elektroda, p.kaczmarek2, post #20763774]

What if the bulb doesn’t work after resoldering the CB2L module?

One user fixed connectivity by removing two capacitors near CB2L, cleaning, and carefully resoldering. After a cautious power‑on, the bulb joined the network. Check for solder bridges and residue if your board stays unresponsive. [Elektroda, divadiow, post #20950104]

What firmware color mode does the Tuya config report?

The configuration reports cmod set to rgbcw. That means three RGB channels plus two independent white channels for tunable CCT. Map all five PWM outputs to use full functionality. [Elektroda, divadiow, post #20858805]

What are the default brightness limits in the Tuya configuration?

The dump shows brightmin at 10 and brightmax at 100. This implies a 10% minimum brightness and 100% maximum before any custom tuning. Adjust in your firmware UI if you prefer a lower floor. [Elektroda, divadiow, post #20858805]

Where does the Tuya data block start in the flash dump?

The Tuya section starts at address 2,023,424 in the shared dump. Use this offset when parsing or validating configuration structures during profile creation. It helps tooling locate DP and PWM config. [Elektroda, divadiow, post #20950104]

How can I auto-detect GPIO roles instead of mapping manually?

Use the OBK Web App’s guided detection flow linked by the maintainer. “You can get GPIO roles automatically that way.” This accelerates setup and reduces mapping mistakes. Verify results against your device’s behavior. [Elektroda, p.kaczmarek2, post #20763709]