**1. Do LED strips flicker? **
Some LED strips flicker
- Low-quality LED strips (especially low-priced products) may flicker due to the use of inferior driver power.
- High-end LED strips (such as OSRAM, Philips and other brands) use constant current drive technology to achieve no flicker.
**2. How to identify whether an LED strip flickers? **
3 simple detection methods
| Method | Operation steps | Accuracy |
|---|---|---|
| Mobile phone camera detection | Use a mobile phone to shoot the light strip and observe whether there are ripples in the picture | ★★★☆☆ |
| Pencil swing test | Quickly shake the pencil and observe whether the afterimage is obvious | ★★☆☆☆ |
| Professional stroboscope | Measure the flicker percentage (<5% is qualified) | ★★★★★ |
| (Reference:) |
**3. Does strobe light harm the eyes? **
Health risks
- Short-term effects: Eye fatigue, headache (low-frequency flicker below 120Hz is the most serious).
- Long-term risks: May accelerate retinal cell damage, especially for children and myopic patients.
**4. How to avoid flickering of LED light strips? **
Four major protective measures
① Choose “no flicker certification” products (such as TÜV, IEEE1789 standards).
② Give priority to buying constant current drive light strips (more stable than PWM dimming).
③ Check power adapter (aging power supply is the main cause of flicker).
④ Avoid using in unstable voltage environments (voltage stabilizer can be installed).
**5. Is the quality of no flicker light strip the best? **
Quality correlation
- No flicker ≠ full quality, also need to pay attention to:
- Color rendering index (CRI>90)
- Waterproof grade (IP65+)
- Service life (>30000h)
- High-end no flicker light strips usually use silicone encapsulation, which is more durable than PVC.
**6. Can no flicker light strips be cut? **
Cutting precautions
- Cutting types: Light strips marked with a “scissors logo” (every 3-5 LEDs have cutting points).
- Cutting prohibited: High-voltage 220V light strips (professional electricians are required to operate).
- Correct operation: After cutting, the cut must be sealed with waterproof glue.
**7. Are non-stroboscopic light strips expensive? **
Price comparison
| Type | Price range (RMB/m) | Applicable scenarios |
|---|---|---|
| Ordinary stroboscopic light strip | 5-15 | Temporary decoration |
| Non-stroboscopic light strip | 20-50 | Home/office |
| High-end non-stroboscopic light strip | 60-120 | Medical/museum |
| Money-saving tips: When purchasing, you can ask the merchant to provide stroboscopic test videos to avoid buying inferior products at high prices. |
Summary
- The flicker problem mainly depends on the quality of the power supply. When purchasing, please look for constant current drive + certification standards.
- Health impact cannot be ignored. It is recommended to choose flicker-free products, especially for children’s rooms, study lamps and other scenes.
- Cutting and installation must follow the product instructions to avoid damaging the circuit.
For the latest industry standards, please refer to: International Commission on Illumination (CIE).