StarSharp specializes in TV backlight strips. Models 4708-K390WA-A1213K11, K390WD, KTC K390WD-A fit TCL 39P6, 39L2F. As a core LCD component, it has 12LED chips on widened aluminum. With professional optics, it turns point light to uniform surface light via light guide plate. This 39-inch strip uses 3V precise voltage, ensuring brightness uniformity. Its standardized interface guarantees full compatibility with original driver circuits.

LED TV backlight strips Parameters：

LED TV backlight strips Features:

Perfect Left–Right Fit, Easy Installation These 388 mm + 388 mm strips are symmetrically designed to match the left and right backlight zones of TCL 39-inch models. The connectors align precisely with the original driver board, so installation requires no rewiring. With clear “L/R” markings and an 8-strip set providing full-panel coverage, users can complete a correct replacement in about 10 minutes without guesswork.

Clear, Even Brightness A dual-row layout with 6+6 LEDs delivers stable 3V operation and up to 220 lm/W efficiency. Micro-lens optics provide a 120° beam for full-area coverage, achieving tested brightness uniformity above 96% with ΔE color accuracy under 3.0. The screen stays free from dark edges and hot spots, offering sharper detail and more comfortable viewing.

Efficient Cooling, Long Service Life Wide, thick aluminum boards on both sides improve heat transfer to 2.3 W/m·K, supported by open-slot thermal channels. LED junction temperatures remain under 58°C, reducing stress and preventing early dimming. Reinforced high-temperature soldering ensures durability, with lifespan tests showing less than 2.8% brightness drop per 10,000 hours and over eight years of reliable use.

Factory-Level Compatibility Each batch is calibrated to TCL specifications, keeping wavelength deviation within 2 nm, current fluctuation within ±5 mA, and brightness variance under 1.5%. After installation, the strips work seamlessly with the original driver IC—no flicker, no overcurrent warnings, and no calibration required.

Durable Build, Transport-Safe Design A rigid anti-warp PCB with protective coating resists moisture and abrasion, while reinforced packaging prevents damage during international transport. The simple structure and intuitive installation make the product suitable for both bulk trade orders and end-users performing their own replacement.

LED TV backlight strips Application :

LED TV Backlight strips FAQ：

Q: How about the quality control of the backlight strip during production?

A: Our backlight strips go through a meticulous quality control process. There are corresponding quality inspections at every stage, and all requirements must be met. So far, among all the customers we've served, there haven't been any reported quality problems.

Q: If I need a large quantity of backlight strips, can the factory meet my demand?

A: Absolutely. Our factory output is quite substantial, capable of reaching over 100,000 units. We also support customization. Whether it's a large - scale order or a customized one, we look forward to cooperating with you to fulfill your needs.

Q: I'm in a hurry. How soon can I get the sample of the backlight strip?

A: For samples, it typically takes 3 - 5 days. If you need it urgently, let us know, and we'll do our best to expedite the process. For mass production, it usually takes 7 - 14 days. Given that we have our own factory and don't engage in secondary sales, we can ensure a large output and relatively lower prices compared to the general market.

Q: I'm concerned about shipping costs. What are the options for transporting the backlight strips?

A: For urgent and lightweight orders, you can choose from well - known couriers like UPS, FedEx, TNT, DHL, or EMS. If your order is heavier, to cut down on costs, we can arrange for shipping via air or sea. You don't have to worry; we'll find the most suitable shipping method according to your requirements.

Q: My TV is a relatively rare brand. Are your backlight strips still likely to be compatible?

A: Our backlight strips are designed to be suitable for a wide variety of TV brands and models. Please provide the brand and model of your TV, or you can check our compatibility list. This will help ensure that the selected backlight strip is a proper fit for your TV.

Q: What if I notice some flickering on my TV screen? Does it mean I need to replace the backlight strip?

A: Flickering is one of the common signals that might indicate the need to replace the backlight strip. Other signs include uneven screen brightness, a black screen, or color distortion. If you encounter these problems, it's likely that the backlight strip needs to be replaced. However, it's also advisable to double - check with a professional to confirm the issue.