[BK7231N] Feit Electric - 100W (18W) A21/E26 RGBCW Bulb (OM100/RGBW/CA/AG)

mattj 1644 0

TL;DR

Feit Electric’s 100W-equivalent A21/E26 RGBCW bulb, model OM100/RGBW/CA/AG, is examined in a partial teardown.
Inside, it uses a CB2L BK7231N controller with 5 PWM channels for color control.
The bulb is rated at 18W actual, 1600 lumen, and 90+ CRI.
It was flashed successfully with Tuya CloudCutter on firmware version 1.2.16, with Flag 8 required.

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BK7231N bulb uses five PWM channels and flag 8
Post #1 20629993 24 Jun 2023 23:59

Another RGBCW bulb from Feit Electric... this one has a different configuration than those which have already been discussed here.

Amazon Listing: https://www.amazon.com/dp/B07X8QXR9L?psc=1&ref=ppx_yo2ov_dt_b_product_details

Specs:
* 100W Equivalent
* 18W actual
* 1600 lumen
* 90+ CRI

Teardown (Partial):

Config:
* Equipped with a CB2L (BK7231N)
* 5 PWM control
* Need to set Flag 8
* Flashed with Tuya CloudCutter (FW Version: 1.2.16)

Code: text Expand Select all Copy to clipboard
{ "vendor": "Feit Electric", "bDetailed": "0", "name": "Feit Electric - 100W (18W) A21/E26 RGBCW Bulb (OM100/RGBW/CA/AG)", "model": "OM100/RGBW/CA/AG)", "chip": "BK7231N", "board": "TODO", "flags": "1280", "keywords": [ "TODO", "TODO", "TODO" ], "pins": { "6": "PWM;2", "7": "PWM;3", "8": "PWM_n;4", "24": "PWM;5", "26": "PWM;1" }, "command": "", "image": "https://obrazki.elektroda.pl/8403676000_1687643661.jpg", "wiki": "https://www.elektroda.com/rtvforum/viewtopic.php?p=20629993#20629993" }

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[BK7231N] Feit Electric - 100W (18W) A21/E26 RGBCW Bulb (OM100/RGBW/CA/AG)

FAQ

TL;DR: This FAQ helps OpenBeken users flash a 1600 lumen Feit Electric OM100/RGBW/CA/AG bulb; the key expert note is "Need to set Flag 8" for its 5 PWM BK7231N configuration. Use it to verify pins, firmware, and channel behavior before setup. [#20629993] Why it matters: This bulb uses a different RGBCW configuration than other Feit Electric bulbs, so copying another template can map colors incorrectly. Key insight: The Feit Electric OM100/RGBW/CA/AG uses a CB2L module with a BK7231N chip and five PWM outputs. Its working OpenBeken-style setup requires Flag 8 and one inverted PWM channel. [#20629993]

Quick Facts

Feit Electric lists this A21/E26 RGBCW bulb as 100W equivalent, with 18W actual power use and 1600 lumen output. [#20629993]
The reported bulb uses a CB2L module with a BK7231N chip, not an ESP-based module. [#20629993]
The configuration uses 5 PWM control channels on pins 6, 7, 8, 24, and 26. [#20629993]
The thread reports successful flashing with Tuya CloudCutter on firmware version 1.2.16. [#20629993]
The bulb specification includes 90+ CRI, which indicates higher color-rendering quality than basic low-CRI lighting. [#20629993]

How do I flash the Feit Electric OM100/RGBW/CA/AG A21/E26 RGBCW bulb with Tuya CloudCutter?

Flash it with Tuya CloudCutter when the bulb runs firmware version 1.2.16. 1. Confirm the model is OM100/RGBW/CA/AG. 2. Run Tuya CloudCutter against the device. 3. Apply the BK7231N OpenBeken pin template with Flag 8 enabled. The thread reports this exact firmware and method as working for the 18W, 1600 lumen bulb. [#20629993]

What is the correct OpenBeken pin configuration for the Feit Electric 100W equivalent 18W RGBCW bulb with a BK7231N chip?

Use five PWM channels: pin 6 as PWM channel 2, pin 7 as PWM channel 3, pin 8 as PWM_n channel 4, pin 24 as PWM channel 5, and pin 26 as PWM channel 1. Enable Flag 8. The reported flags value is 1280 for this Feit Electric OM100/RGBW/CA/AG BK7231N bulb. [#20629993]

Why does the Feit Electric OM100/RGBW/CA/AG bulb need Flag 8 enabled for its PWM setup?

It needs Flag 8 because the reported working configuration explicitly says to set it for this 5 PWM bulb. The thread does not explain the internal reason. It records the practical requirement beside the CB2L, BK7231N, and 5 PWM control details. Without that flag, this exact template may not drive the RGBCW channels as intended. [#20629993]

What does the CB2L module do inside the Feit Electric RGBCW smart bulb?

The CB2L module provides the smart control hardware in this Feit Electric RGBCW bulb. "CB2L is a Wi-Fi module that hosts the BK7231N control chip, exposing configurable PWM outputs for the bulb’s red, green, blue, cool-white, and warm-white LED channels." The partial teardown identifies CB2L as the installed module. [#20629993]

What is a BK7231N chip, and how is it used in Tuya-based smart bulbs?

The BK7231N is the control chip reported inside this Tuya-based Feit Electric bulb. "BK7231N is a smart-device microcontroller used here to run firmware and generate PWM control signals, replacing the stock cloud firmware after Tuya CloudCutter flashing." In this bulb, it drives 5 PWM channels through the CB2L module. [#20629993]

What does RGBCW mean on the Feit Electric A21/E26 smart bulb?

RGBCW means the bulb has red, green, blue, cool-white, and warm-white light channels. The thread describes this Feit Electric A21/E26 model as an RGBCW bulb with 5 PWM control. Those five channels match the five configured PWM outputs on the BK7231N template. [#20629993]

How are the five PWM channels mapped on the Feit Electric OM100/RGBW/CA/AG bulb?

The five PWM channels map to pins 26, 6, 7, 8, and 24 as channels 1 through 5. Pin 26 is PWM 1, pin 6 is PWM 2, pin 7 is PWM 3, pin 8 is PWM_n 4, and pin 24 is PWM 5. The template uses one inverted channel. [#20629993]

Which firmware version of the Feit Electric OM100/RGBW/CA/AG bulb was reported to work with Tuya CloudCutter?

Firmware version 1.2.16 was reported to work with Tuya CloudCutter. The thread specifically says the Feit Electric OM100/RGBW/CA/AG bulb was flashed with Tuya CloudCutter on FW Version 1.2.16. That report applies to the BK7231N variant using the CB2L module. [#20629993]

What are the main specifications of the Feit Electric 100W equivalent OM100/RGBW/CA/AG bulb?

The main specifications are 100W equivalent output, 18W actual power, 1600 lumen brightness, and 90+ CRI. The bulb uses an A21/E26 format and supports RGBCW color control. The reported smart hardware is a CB2L module with a BK7231N chip. [#20629993]

How does the Feit Electric OM100/RGBW/CA/AG bulb compare with other Feit Electric RGBCW bulbs using different configurations?

This Feit Electric OM100/RGBW/CA/AG bulb uses a different configuration than other Feit Electric RGBCW bulbs already discussed. Its distinguishing reported setup is CB2L, BK7231N, 5 PWM control, Flag 8, and one PWM_n output on pin 8. Do not assume another Feit RGBCW template matches this 18W model. [#20629993]

What should I check if the colors or white channels are wrong after flashing a BK7231N RGBCW bulb?

Check the 5 PWM pin mapping, the inverted PWM_n channel, and Flag 8 first. Wrong colors can happen if channel numbers do not match pins 6, 7, 8, 24, and 26. White-channel errors can also appear if the PWM_n channel on pin 8 is treated as normal PWM. [#20629993]

How safe is it to partially tear down an A21/E26 mains-powered smart bulb for identifying the Wi-Fi module?

The thread shows only a partial teardown and does not provide safety procedures. Treat the A21/E26 bulb as a mains-powered device because it is an 18W household lamp. Do not power it while opened. The useful identification target is the CB2L module carrying the BK7231N chip. [#20629993]

What does PWM_n mean in an OpenBeken bulb configuration compared with normal PWM?

PWM_n marks an inverted PWM output in this configuration. "PWM_n is an inverted pulse-width-modulation channel that reverses the active drive behavior compared with normal PWM, so the same brightness value can produce opposite electrical output." This bulb uses PWM_n on pin 8 for channel 4. [#20629993]

Where can I find the Feit Electric OM100/RGBW/CA/AG bulb, and what model details should I verify before buying?

The thread links the bulb to an Amazon listing and names the model OM100/RGBW/CA/AG. Verify the Feit Electric brand, 100W equivalent rating, 18W actual power, A21/E26 form factor, and RGBCW capability. Also verify the BK7231N or CB2L hardware before using this template. [#20629993]

How do lumen output, 18W power use, and 90+ CRI affect real-world performance of this Feit Electric smart bulb?

The 1600 lumen output makes this bulb a bright 100W-equivalent option, while 18W actual use defines its power draw. The 90+ CRI rating indicates stronger color rendering than lower-CRI bulbs. Together, those specs make it suitable for bright, color-capable A21/E26 smart lighting. [#20629993]