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WiFi IoT Switch SONOFF Smart LED Bulb B05BL
WiFi IoT Switch SONOFF Smart LED Bulb B05BL

WiFi IoT Switch SONOFF Smart LED Bulb B05BL

SKU: HAT-00021

Brand: SONOFF

Warranty: 30 Days

Model: N/A

৳ 960.05

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Category: IoT Device

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Description of WiFi IoT Switch SONOFF Smart LED Bulb B05BL

The SONOFF Smart LED Bulb B05BL is a feature-rich, energy-efficient lighting solution designed to enhance your smart home experience. Supporting app control, voice commands, and scene customization, this bulb allows you to enjoy comfortable and personalized lighting.

Key Features


  • Smart App & Voice Control
    Compatible with the eWeLink App, Alexa, and Google Assistant, allowing remote control and voice operation.
  • Reliable and Energy Efficient
    Certified by Energy Star and ERP, this bulb provides long-lasting performance with reduced electricity costs compared to traditional lighting.
  • Customizable Lighting Experience
    Adjust brightness and color temperature effortlessly to create a comfortable environment tailored to your needs.
  • Vibrant Color Modes (RGBCW Model)
    Control a wide range of colors using the app to set the perfect ambiance for any room or mood.
  • Scene Mode for Every Mood
    Choose from preset scenes or create your own to reflect your lifestyle—ideal for work, relaxation, or parties.
  • Music Sync Function (LAN Mode)
    With your phone’s MIC, the bulb can sync its lighting effects to music rhythms (up to 10 bulbs), offering an immersive audio-visual experience.
  • Scheduling & Automation
    Set specific on/off timers and routines for daily life, improving convenience and energy efficiency.

Technical Specifications


 Feature

Specification

Model

B05-BL-A60

Color Temperature (CCT)

2700K – 6500K

Power Rating

9W

CRI

≥ Ra80

Luminous Flux

806 Lm

Base Type

E27

Wi-Fi

Yes (via eWeLink App)

Input Voltage

230V AC, 50Hz

Dimensions

60 × 60 × 112 mm


Application


  • Home lighting automation
  • Smart office environments
  • Entertainment lighting (music sync)
  • Scheduled lighting routines


Packaging Details


  • 1 × WiFi IoT Switch SONOFF Smart LED Bulb B05BL


WiFi IoT Switch SONOFF Smart LED Bulb B05BL – Frequently Asked Questions


How do I pair the SONOFF Smart LED Bulb B05BL via eWeLink?

To pair the bulb, turn it on and wait for it to enter Bluetooth Pairing Mode (breathing light) automatically. If it doesn't within 3 minutes, press the wall switch three times (off-on-off-on-off-on) with 1-second intervals to re-enter pairing mode. If still not connecting, use the Compatible Pairing Mode by pressing the switch five times rapidly with 1-second intervals.


Why does the bulb repeatedly fail to connect in the app?

Common setup issues include:

  • Incorrect Wi‑Fi password
  • Being too far from the router or experiencing interference
  • Attempting to connect via 5 GHz Wi‑Fi (bulb only supports 2.4 GHz)
  • MAC filtering is enabled on the router
    Ensure your network is stable and try pairing again.

What control methods are available?

The B05BL supports three control modes:

  1. Standard Wi-Fi via eWeLink App
  2. LAN control when devices are on the same local network
  3. eWeLink Remote control (with compatible controllers like R5 or S‑MATE).

What happens when the bulb loses internet access?

When offline, the eWeLink app shows a "device offline" status. You can still control the bulb via LAN or Bluetooth pairing in compatible modes.


Does the bulb support RGB lighting and color temperature control?

Yes. The B05 (RGBCW) model offers full-color RGB plus adjustable warm-to-cool white (2700K–6500K) settings. The eWeLink app allows flexible color selection, temperature adjustment, and brightness control.


Can the bulb sync with my music?

Yes, up to 10 bulbs can sync with music in LAN mode only using your smartphone microphone. The bulbs dynamically change color according to the music rhythm for immersive entertainment lighting.


Does the bulb support scheduled lighting and automation?

Absolutely. You can set time-based routines, on/off timers, and scenes in the eWeLink app for fully automated lighting control.


How long is the bulb’s lifespan and energy consumption?

  • Rated Lifetime: ~15,000 hours
  • Annual Energy Use: ~9.9 kWh (very efficient for a 9W bulb)

Can I use the bulb with Amazon Alexa or Google Assistant?

Yes. The B05BL is fully compatible with voice control via Alexa and Google Assistant for hands‑free operations.


What should I do if the bulb doesn’t enter pairing mode?

Users on forums suggest counting timing rather than rushing the button presses. One user reported:

“Try on a 2-second interval and wait for a while after 3 times. The light bulb will go into blinking mode for pairing.


Are there any known integration issues with Home Assistant or widgets?

  • Home Assistant integration via SonoffLAN is limited to on/off control and may not support color changes due to firmware restrictions.
  • eWeLink widgets currently don’t support control of smart bulbs, according to users.


Attention


Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, don't hesitate to get in touch with us to determine if further actions may be taken.


Need Help?


Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 08:00 pm (7 days a week). You can also reach us via Live Chat or Facebook Inbox

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Questions & Answers about WiFi IoT Switch SONOFF Smart LED Bulb B05BL

Questions answered by Techshop (1)

Does this work with apple homekit?

By shurjo.sm on 02 Jul 2025

“No, the SONOFF Smart LED Bulb B05-BL is not compatible with Apple HomeKit. It usually works with apps like eWeLink, Alexa, and Google Assistant.”

By Techshop on 16 Jul 2025

WiFi IoT Switch SONOFF Smart LED Bulb B05BL

৳ 960.05

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