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. Note: The Music sync function works in LAN mode only and requires access to the smartphone microphone. Color availability and model functionality may vary slightly based on region and stock. 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: Standard Wi-Fi via eWeLink App LAN control when devices are on the same local network 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
