StarSharp specializes in high-quality TV backlight solutions, and the TMT_40_Green_UD_6x5_303C_A_5S1P / 4C-LB4005-YH1A models are precisely matched for TCL L40M90-UD. Designed as a core component of the LCD system, each strip integrates 10 LED chips on a widened aluminum substrate to enhance heat dissipation and extend service life. Its refined optical design efficiently converts point-source LEDs into uniform surface illumination through the light guide plate, maintaining consistent brightness across the entire 40-inch screen. Operating at a stable 3V drive, it ensures reliable luminance performance, while the standardized interface offers full compatibility with the original driver circuitry for effortless installation and dependable results.

LED TV backlight strips Parameters：

LED TV backlight strips Features:

Precise Fit, Easy Installation This TV light strip comes in A/B versions, with a 420 mm length that matches the TCL L40M90-UD backlight layout. The connector pins and driver slots align perfectly with the original design, requiring no rewiring or adjustments. The 6+6 pcs/set configuration is tailored for this model to avoid the light-leak issues common with universal strips. Even first-time installers can complete the replacement quickly by matching the labels on the strips and the TV.

Low-Blue-Light Design with Vivid Picture Quality As a core LED TV backlight strip, it uses 5+5 low-blue-light beads with a stable 3 V constant-voltage drive, delivering 225 lm/W efficiency. Each bead includes a blue-light-filter coating that reduces blue-light output by 25%, helping relieve eye strain during long viewing sessions. Optimized lenses enhance color concentration, improving saturation by 12% for a more vibrant and natural picture.

Enhanced Aluminum Cooling for Long Lifespan The widened 1.2 mm aluminum substrate and elongated cooling slots accelerate heat dissipation, keeping LED junction temperature below 55 °C during operation. Reinforced solder joints with 3.6 N adhesion withstand 5,000 thermal cycles without failures. With ≤3% light decay per 10,000 hours, brightness remains above 85% even after eight years of use, reducing replacement frequency.

Original-Spec Parameters for Full Compatibility The current and voltage specifications precisely replicate TCL’s original backlight design. LED wavelength deviation stays within ±2 nm, and brightness variation between batches is under 1.8%. After installation, the strips integrate seamlessly with the TV’s backlight system without brightness issues or driver errors, delivering performance equivalent to OEM parts at a more economical price.

Simple Operation, Broad Compatibility Installation is simplified to just “remove the old, plug in the new,” requiring no special tools or technical skills. In addition to the TCL L40M90-UD, it also matches models such as the TCL 40L8F, providing wide compatibility across multiple 40-inch series.

LED TV backlight strips Application :

LED TV Backlight strips FAQ：

Q: Which TV models does this LED backlight strip work with? A: This model is suitable for LG 40UF7707, 40UF7727, 40UF7767, 40UF7787. Keep in mind that many TV models use different sets of LED strips. Before placing an order, please compare the strips shown in the photo with the original ones in your TV to ensure a proper match.

Q: What materials are used in the construction of the backlight strips? A: Aluminum is used in the construction. Aluminum offers excellent heat dissipation properties, which contribute to the backlight strip having a lifespan of over 8 years.

Q: Who should I contact if I have questions or need assistance with my order? A: You can directly contact our customer service. We are committed to providing you with high - quality service to address all your concerns.

Q: Can I install this LED backlight strip by myself? A: While it is possible for someone with basic electronics knowledge to install the LED backlight strip, we recommend having it installed by a professional. Installation requires careful handling to avoid damaging the strip and ensuring proper electrical connections. If you choose to install it yourself, make sure to follow the detailed installation instructions provided.

Q: Is the lifespan of 8 years for the backlight strip guaranteed under all conditions? A: The 8 - year lifespan is based on normal usage and proper environmental conditions. Factors such as extreme temperatures, high humidity, or improper power supply can affect the actual lifespan. To ensure the longest lifespan, use the backlight strip within the recommended operating parameters.

Q: Does the backlight strip come with any additional accessories? A: The backlight strip usually comes with basic accessories that may include adhesive for easy mounting. However, depending on the specific model, there could be other accessories. Check the product description for a detailed list of what is included with your purchase.