LED Lighting
Knowledge Hub
Practical insights for LED strip, neon flex, project lighting, and OEM manufacturing. Guides, ideas, and technical knowledge for distributors, importers, and lighting brands.
How to Choose the Right LED Strips?
Choosing LED strip lights should be simple. Butonce you start seeing terms like 12V, 24V, COB,RGBW, IP65, CRI90, power injection, and neon..
Where Are RAB Lighting EZPAN LED Panels Manufactured?
A Cambodia-made LED panel can qualify for certain U.S. federal purchases. It can also face U.S. import tariffs. Both statements can be true because TAA compliance, Made-in-USA status and tariff treatment are three different tests. That distinction is the most important fact B2B buyers should understand about RAB EZPAN LED panels. Direct Answer RAB’s official […]
Where Are Metalux LED Flat Panels Manufactured?
The 2×4 FPS panel 24FPSL2SCT3 is listed with Country of Origin: CN and ARRA: Yes. In other words, the same product record identifies China as the customs origin while also displaying a U.S. procurement-related status. That is not necessarily a contradiction. It is a warning: country of origin, ARRA status and TAA compliance answer different […]
Where Are Lithonia Lighting LED Flat Panels Manufactured? A Model-Level Country-of-Origin Audit
The Lithonia logo on the carton may be the least useful piece of origin information on the carton. That sounds counterintuitive. Lithonia Lighting is a well-established U.S. lighting brand under Acuity Brands, headquartered in Georgia. But a U.S. brand address does not prove that every CPX, CPANL or other LED panel carrying that name was […]
Are Vietnam-Made LED Panel Lights Automatically Exempt From China Section 301 Tariffs?
Updated: August 2026 Short answer: No. LED panel lights are not automatically exempt from China Section 301 tariffs simply because they are shipped, assembled or labeled in Vietnam. If U.S. Customs and Border Protection determines that an LED panel is legally a product of Vietnam, the China-specific Section 301 tariff generally does not apply. However, […]
0–10V LED Flat Panel Dimming: Why “Dimmable” Does Not Mean Dim-to-Off
A 0–10V dimmable LED flat panel does not automatically turn completely off when the control signal reaches 0V. Some drivers dim only to a minimum light level. Some support electronic dim-to-off. Others require a relay or switch to disconnect line voltage. The final behavior depends on the complete combination of: For distributors, contractors and project […]
Why 4000K LED Panels From Different Production Batches Do Not Match
Two LED panels can both be correctly labeled 4000K and still look different when installed next to each other. One may appear slightly green, pink, warm or cool. The difference may come from the LED bin, chromaticity target, Duv, operating temperature, drive current, diffuser or production-batch controls. For distributors and project buyers, the key lesson […]
UGR < 22 LED Flat Panel Lights: What Buyers Should Verify
A “UGR < 22 LED flat panel” is not automatically glare-compliant in every room. Unified Glare Rating depends on the luminaire’s light distribution, but it also depends on the room dimensions, surface reflectance, mounting height, luminaire layout, observer position and viewing direction. For B2B buyers, the correct question is not simply: Is this panel UGR […]
LM-79 vs LM-80 vs TM-21 for LED Panel Lights
LM-79 measures the optical and electrical performance of a complete LED panel at a specific point in time. LM-80 measures how LED packages, arrays or modules maintain light output and color over time. TM-21 uses LM-80 data to project the future flux maintenance of those LED light sources. The important distinction is often missed: None […]
Why Do LED Panel Lights Turn Yellow, Flicker or Develop Dark Spots?
Most buyers blame the LED chips when a flat panel turns yellow, starts flickering or develops dark areas. That is often the wrong diagnosis. LED panel light problems are usually system-level failures. The optical materials, LED layout, driver, dimming control, heat management, assembly and production consistency all affect what the buyer eventually sees on the […]