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Universal CCFL Inverter LCD Monitor 4 Lamp 10-30V – Laptop 15-22 Inch India
Universal CCFL Inverter LCD Monitor 4 Lamp 10-30V – Laptop 15-22 Inch India
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LCD monitor or laptop screen flickering, dim, or completely dark with backlight not working? The universal CCFL inverter board (4-lamp, 10–30V input) drives the cold cathode fluorescent lamps that illuminate older LCD screens — a very common repair part for CCFL-backlit LCD monitors and laptops from 2005–2015.
What Is a CCFL Inverter?
CCFL (Cold Cathode Fluorescent Lamp) backlights require high-voltage AC to operate — typically 600V–1000V AC at 40–80kHz. The inverter board converts the laptop or monitor's low DC voltage (10–30V) to this high-voltage AC supply. When the inverter fails, the backlight goes dark — but the screen image is still visible when viewed in bright external light.
CCFL vs LED Backlight — Why This Matters
| Display Type | Backlight | Inverter Needed? |
|---|---|---|
| Older LCD (pre-2012) | CCFL tubes | ✅ Yes — this product |
| Modern LED LCD | LED strips | ❌ No inverter needed |
How to Diagnose CCFL Inverter Failure
- Screen completely dark but you can faintly see the image when shining a torch — inverter failed
- Screen flickers on startup then goes dark after a few seconds
- Screen works but is very dim even at full brightness setting
Key Features
- Universal CCFL inverter — 4 lamp, 10–30V input range
- Compatible 15-inch to 22-inch widescreen LCD monitors and laptops
- Universal design — fits multiple LCD monitor and laptop brands
- Restores full backlight brightness
Related Products
- SMPS Universal Power Supply Board – 29 Inch Colour TV
- LVDS Cable 30-Pin for LED TV – Compatible Replacement
Buy in India
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FAQ
Q: How do I know if my laptop has CCFL or LED backlight?
Check the laptop's manufacturing year — pre-2012 laptops mostly used CCFL. Post-2012 mostly LED. You can also check by looking at the screen edge — CCFL screens have a slightly thicker bezel housing the fluorescent tubes.
Q: Is CCFL inverter replacement DIY?
Moderate-advanced difficulty — requires disassembling the laptop/monitor, locating the inverter board, and replacing it. High voltage is present when the inverter is operating. Recommended for experienced electronics repair technicians.
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