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Can COB LED strips run directly on 220V? Expert explanation + safety guide
With the advancement of LED lighting technology, COB light strips have become a popular choice for commercial lighting and home decoration due to their high brightness and uniform light distribution. Shenzhen JOMO Lighting Technology Co., Ltd. has received many inquiries from customers: Can COB light strips be directly connected to a 220V household power supply? This article will provide a detailed analysis of the technical principles and offer safety recommendations for usage.
The answer depends on the type of light strip:
(1) High-voltage COB light strips (220V direct-drive type)
Shenzhen JOMO Lighting Technology Co., Ltd. has developed high-voltage COB light strips with built-in micro driver ICs, which can be directly connected to 220V AC power without an external transformer. These products feature a series circuit design, offering advantages such as easy installation and low cost, making them suitable for long-distance linear lighting applications.
(2) Low-voltage COB light strips (12V/24V)
If the light strip is not labeled as "220V direct-drive," it must be used with a constant-current driver. Direct connection to 220V will instantly burn out the LED chips and pose a safety hazard.
· Check the product label: Reputable brands like Shenzhen JOMO Lighting Technology will clearly mark the input voltage (e.g., AC220V or DC24V) on the packaging.
· Observe the light strip structure: High-voltage COB light strips typically have 50–100 LEDs per meter and come with built-in resistors and rectifiers, while low-voltage versions have lower LED density and require an external driver.
· Consult the supplier: Before purchasing, confirm the product specifications through Shenzhen JOMO Lighting's official website or customer service.
3. Three Key Points for Safe Use of COB Light Strips
(1) Match the Power Supply Type
Non-direct-drive light strips must be paired with waterproof constant-current power supplies (such as JOMO Lighting's IP67 series) to avoid voltage fluctuations causing light decay.
(2) Control the Installation Length
A single high-voltage COB light strip should not exceed 10 meters in length, as excessive length can lead to voltage drop and overheating. Consider segmented power supply or JOMO's customized power solutions.
(3) Ensure Proper Insulation
Even when using 220V direct-drive products, insulation sleeves must be added at the wiring connections. In humid environments, prioritize JOMO's moisture-resistant COB light strips.
4. COB LED Strip Solutions by Shenzhen JOMO Lighting Technology
As a National High-Tech Enterprise, Shenzhen JOMO Lighting Technology offers a full range of COB LED strip products:
· 220V Direct-Drive Flexible COB LED Strip: Driverless design, supports RGB dimming, ideal for cabinet and showcase lighting.
· Low-Voltage Waterproof COB LED Strip Kit: Includes smart driver power supply, suitable for outdoor advertising lightboxes and architectural contour lighting.
· Customized Power Solutions: Provides one-on-one circuit design services tailored to project requirements.
Click to check the [JOMO Lighting COB Light Strip Product Library] or reach out to the technical team for a tailored plan.
Conclusion：
Selecting the correct power supply is crucial for the safe operation of COB LED strips. Shenzhen JOMO Lighting Technology recommends prioritizing voltage-matched products and strictly following the installation instructions. For technical support, please feel free to contact us via our official website’s online consultation or call our service hotline. We are committed to providing you with professional lighting solutions.
Email: jomolighting@jomolighting.com