12W 220Vac Driver Integrated 1917 COB LED

12W 220Vac Driver Integrated 1917 COB LED Specs

Why driverless 220vac cob leds have flickering under the camera?

The flickering you see when filming driverless 220V AC COB LEDs (also known as direct AC LEDs) under a camera is primarily due to the way they are powered. Here's a breakdown of why it happens:

🔌 Why It Flickers:

1. AC Power Frequency (50/60 Hz)

AC power cycles 50 or 60 times per second (depending on your region).

A driverless AC LED rectifies the AC current to power the LEDs, but usually doesn't smooth the voltage completely.

As a result, the LED light output also fluctuates with the AC waveform-usually twice per cycle due to full-wave rectification (so 100Hz or 120Hz flicker).

2. Human Eye vs. Camera

Our eyes usually can't detect this flicker because it's too fast.

But cameras with high frame rates or fast shutter speeds (like in smartphones or DSLRs) do capture the flicker, especially when the shutter speed is faster than 1/100s.

3. No Capacitors or Drivers

Driverless COB LEDs usually skip the use of capacitors or constant current drivers to keep costs low and design compact.

That makes them more prone to ripple and flicker since there's no smoothing of the current.

🔧 Can It Be Fixed?

1. Add a Driver or Capacitor

Use a constant current driver or add capacitive filtering to stabilize the current.

2. Use Flicker-Free LED Products

Some premium COB LEDs are "flicker-free" or use built-in circuits to smooth the current.

These are designed specifically for photography, videography, or office/studio environments.

🎬 TL;DR

Driverless 220V AC COB LEDs flicker under a camera because they run directly off alternating current without smoothing, so the LED output rises and falls 100–120 times per second-fast for your eyes, but visible to a camera's shutter.

12W 220Vac Driver Integrated 1917 COB LED Picture

12W 220Vac Driver Integrated 1917 COB LED dimensions

 

12W 220Vac Driver Integrated 1917 COB LED Electrical Specs

Parameter	Symbol	Min	Avg.	Max	Units
AC voltage		200.0	--	240	V
AC frequency			50		Hz
Luminous Flux	Φv	1000	--	1200	LM
Photosynthetic efficiency		90		100	Lm/W
Color Temperature	CCT	6000	--	6500	K
CRI	Ra		80	--	--
Viewing Angle	2Θ1/2	−−	140	−−	Deg
Leakage Protection Rating			AC 1750	−−	V
Anti-surge rating		2	−−	3	KV

 

12W 220Vac Driver Integrated 1917 COB LED Applications

 

12W 220Vac Driver Integrated 1917 COB LED applications

 

LED Bulb Light

LED down Light

LED Indicator Lights

LED table lights

LED tube lights

LED indoor lights

LED track lights

LED track lights

LED bulbs Light

LED down Lights

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Shenzhen Guangmai Electronics Co., Ltd., established in 2009 with a registered capital of 30 million RMB, is an enterprise specializing in the manufacturing of semiconductor packaging devices. Its subsidiaries include Shenzhen Guangmai Technology Co., Ltd., Guangmai Technology (Hong Kong) Co., Ltd., and Shenzhen OKAY Lighting Co., Ltd., forming a powerful corporate group. Guangmai Electronics is a national high-tech enterprise and a specialized and new enterprise in Shenzhen. It has been ranked among the top 100 in China's LED industry and has been awarded honors such as Shenzhen Standard Application Demonstration Unit and Guangdong Integrity Demonstration Enterprise.

 

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