Product Overview
The VOCOlinc L4-1P Smart Light Bulb is an advanced LED bulb designed for modern smart homes. It offers 16 million colors, dimmable white light (2200K-7000K), and seamless integration with Apple HomeKit, Amazon Alexa, and Google Assistant. This bulb provides 850 lumens of brightness while consuming only 9.5 watts of power, equivalent to a 60-watt incandescent bulb. Its A21 shape and E26 base make it compatible with standard light fixtures.

Image: The VOCOlinc L4-1P Smart Light Bulb, showcasing its multicolor capabilities and compatibility with Apple HomeKit, Alexa, and Google Home. The product packaging is visible on the left.
Key Features
- Full Color Changing: Supports 16 million colors and adjustable white light from 2200K (warm white) to 7000K (cool white).
- Voice Control: Compatible with Apple HomeKit (Siri), Amazon Alexa, and Google Assistant for hands-free operation.
- Remote Control: Control the bulb from anywhere using the Apple Home app or the VOCOlinc app (requires 2.4GHz Wi-Fi).
- Timing and Scheduling: Set custom schedules to automatically turn the bulb on/off based on your routine.
- Energy Efficient: 9.5W power consumption, equivalent to a 60W incandescent bulb, providing 850 lumens.
- Group Control: Manage multiple VOCOlinc bulbs individually or as a group for synchronized lighting.

Image: A visual representation of the VOCOlinc smart bulb's powerful features, including App Control, Multi-Color, Voice Control, 5 Effects Modes, Dimmable, Schedule/Timer, Energy Saving, and Group Control.
Setup and Installation
- Physical Installation:
Carefully screw the VOCOlinc L4-1P Smart Light Bulb into a standard E26 light socket. Ensure the power to the fixture is turned off before installation.
- Download the App:
Download the official VOCOlinc LinkWise app from the Apple App Store or Google Play Store. This app is essential for initial setup and advanced features.
- Connect to Wi-Fi:
Ensure your smartphone is connected to a 2.4GHz Wi-Fi network. The VOCOlinc L4-1P bulb only supports 2.4GHz Wi-Fi for initial setup and operation.
- Pairing the Bulb:
Open the LinkWise app. Follow the on-screen instructions to add a new device. You may need to scan the HomeKit setup code located on the bulb or its packaging.

Image: The VOCOlinc L4-1P Smart Light Bulb demonstrating its ability to display 16 million colors and adjust dimmable color temperature, creating custom scenes for various moods.
- Integrate with Smart Home Platforms:
Once paired with the LinkWise app, you can link your VOCOlinc account to Apple Home, Amazon Alexa, or Google Home for voice control and advanced automation.
- Apple HomeKit: The bulb is HomeKit-enabled. Simply open the Home app on your iOS device and add the accessory using the HomeKit code.
- Amazon Alexa: Enable the "VOCOlinc" skill in the Alexa app and link your account. Discover devices to add your bulb.
- Google Assistant: Link the "VOCOlinc" service in the Google Home app and follow the prompts to add your bulb.
Operating Instructions
App Control (LinkWise App)
- On/Off: Tap the bulb icon in the app to toggle power.
- Brightness: Adjust the slider to change the brightness level (0-100%).
- Color Selection: Choose from 16 million colors using the color wheel or select preset scenes.
- White Temperature: Adjust the white light from warm (2200K) to cool (7000K).
- Scenes and Effects: Create custom scenes or apply dynamic lighting effects.
- Scheduling: Set daily or weekly schedules for automated on/off times and lighting changes.

Image: A screenshot of the VOCOlinc app interface demonstrating group control capabilities and a countdown timer feature, with a modern house illuminated by smart bulbs in the background.
Voice Control
Once integrated with your preferred smart assistant, you can control the bulb using voice commands:
- Apple HomeKit (Siri):
- "Hey Siri, turn on the [Light Name]."
- "Hey Siri, set [Light Name] to 50%."
- "Hey Siri, change [Light Name] to blue."
- Amazon Alexa:
- "Alexa, turn on the [Light Name]."
- "Alexa, dim the [Light Name] to 30%."
- "Alexa, make the [Light Name] red."
- Google Assistant:
- "Hey Google, turn on the [Light Name]."
- "Hey Google, set [Light Name] to bright."
- "Hey Google, change the [Light Name] to warm white."

Image: Individuals interacting with smart home devices using voice commands, demonstrating how to control the VOCOlinc smart bulb via Siri, Alexa, and Google Assistant.

Image: A smartphone displaying the VOCOlinc app interface, illustrating remote control capabilities for smart bulbs within a house, compatible with Apple Home and VOCOlinc Cloud.

Image: A bedroom setting illustrating the scheduling feature of the VOCOlinc smart bulb, set to turn on at 8:30 AM for a comfortable wake-up brightness and turn off at 10:30 PM.
Maintenance
The VOCOlinc L4-1P Smart Light Bulb requires minimal maintenance. Follow these guidelines to ensure optimal performance and longevity:
- Cleaning: Before cleaning, ensure the bulb is off and cool. Wipe the bulb with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Firmware Updates: Periodically check the LinkWise app for firmware updates. Keeping the firmware updated ensures the best performance, compatibility, and security.
- Environmental Conditions: Use the bulb in dry, indoor environments within its specified operating temperature range. Avoid exposure to excessive moisture or extreme temperatures.
- Power Cycling: If the bulb becomes unresponsive, try turning the light switch off and on again to power cycle the bulb.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb not connecting to Wi-Fi. | Incorrect Wi-Fi band (only 2.4GHz supported), weak signal, incorrect password. | Ensure your router is broadcasting a 2.4GHz network and your phone is connected to it. Move the bulb closer to the router. Double-check Wi-Fi password. |
| Bulb unresponsive in app/voice control. | Network issue, bulb lost connection, app glitch. | Check your Wi-Fi connection. Power cycle the bulb (turn off/on at switch). Restart the LinkWise app. Re-pair the bulb if necessary. |
| Colors/brightness not accurate. | Outdated firmware, app settings. | Check for and install any available firmware updates via the LinkWise app. Verify color and brightness settings in the app. |
| Bulb turns on randomly. | Automation/schedule conflict, power fluctuation. | Review all schedules and automations in the LinkWise app and your smart home platform (HomeKit, Alexa, Google Home). Consider a smart plug with surge protection if power fluctuations are suspected. |
| Cannot add bulb to HomeKit. | Incorrect HomeKit code, previous pairing issue. | Ensure you are scanning the correct HomeKit setup code. If previously paired, try resetting the bulb (refer to LinkWise app for specific reset procedure, usually involves power cycling multiple times). |
Specifications
| Feature | Detail |
|---|---|
| Model | L4-1P |
| Bulb Shape Size | A21 |
| Bulb Base | E26 |
| Light Type | LED |
| Brightness | 850 Lumens |
| Wattage | 9.5 Watts |
| Incandescent Equivalent | 60 Watts |
| Color Temperature | 2200K-7000K (RGBW) |
| Voltage | 100-120 Volts (60 Hz) |
| Control Method | App, Voice (Apple HomeKit, Alexa, Google Assistant) |
| Connectivity | 2.4GHz Wi-Fi (IEEE 802.11 b/g/n) |
| Average Life | 25,000 Hours |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 3.52 ounces |
| Dimensions | 5.75 x 2.72 x 2.68 inches |
Important Safety Information
- Do not disassemble or modify the bulb.
- Not suitable for use with standard dimmers. Use app or voice control for dimming.
- Ensure the power is off before installing or removing the bulb.
- Do not use in fully enclosed fixtures as this may shorten bulb life.
- This device is not intended for use with emergency exits.
- Keep out of reach of children.
Warranty and Support
VOCOlinc products typically come with a limited warranty. For specific warranty details, please refer to the documentation included with your product or visit the official VOCOlinc website. Keep your purchase receipt as proof of purchase.
For technical support, troubleshooting assistance, or warranty claims, please contact VOCOlinc customer service through their official website or the LinkWise app. You can also visit the VOCOlinc Store on Amazon for more information.





