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led ellipsoidal
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Igracelite led ellipsoidal–Illuminate Your Next Event
Use specialized optics to project images onto a surface, creating a stunning display that can be used to enhance any event. With their bright, vibrant colors, Led ellipsoidals can be used to create a wide range of pattern effects.
Igracelite led ellipsoidal is designed to offer a wide range of possibilities for lighting design. It is made from a high quality aluminium body, which is designed to provide an incredibly bright effect. The light is designed with a beam angle of 5 degrees to 65 degrees, which makes it ideal for creating a wide variety of lighting effects. the light has a built-in RGB color changing feature, which makes it easy to customize the lighting to create the perfect atmosphere. and also has a built-in cool white and warm white, CRI≥95, Perfectly present the original color of the object; PWM precise dimming technology, not only fast response speed but also consistent color. Whether it is the advanced design of chassis heat dissipation or PWM, the service life of the Igracelite LED ellipsoid is greatly increased, which means it will provide many years of reliable lighting.
Igracelite LED ellipsoidal accessories
Igracelite Led Ellipsoidal: Precision Lighting, Redefined, we focus on delivering exceptional performance in three core areas: Light output, Noise reduction, and Control.
- Silent Operation: Utilizing silent fans, temperature-controlled fans, or fanless cooling systems, we ensure whisper-quiet performance for any environment.
- Interference Shielding: Equipped with power filters and shielded covers, our fixtures are designed with proper grounding to minimize electromagnetic interference.
- Flicker-Free Dimming: Our upgraded PWM dimming technology operates at frequencies above 20KHz, eliminating audible noise and ensuring precise, flicker-free performance for camera-friendly lighting.
- Control Options:RDM, Remote Control or WiFi Control
Igracelite Led Ellipsoidal combines cutting-edge technology with thoughtful design to meet the demands of today’s most challenging lighting applications.
PWM Dimming: The Scientific Pulse Behind Light and Shadow
Introduction to PWM Dimming Technology:
PWM (Pulse Width Modulation) dimming adjusts the average current of LEDs by varying the pulse width (0~100% duty cycle) at a fixed frequency, achieving ultra-precise brightness control down to 0.01%. This meets the demanding requirements for smooth light transitions in cinematic and professional lighting applications.
Core Advantages of PWM Dimming:
1, Precision Dimming: Enables seamless and fine-tuned brightness adjustments, from subtle glows to full illumination, meeting the stringent demands of stage and television lighting for detail.
Superior Color Consistency: Maintains stable color temperature during dimming, ensuring consistent and accurate colors without distortion.
2, Rapid Response: PWM dimming allows instant on/off switching, ensuring brightness changes keep up with commands. This is crucial for stage lighting effects, where precise flickering and chasing effects enhance the dramatic impact of performances.
3, Flicker-Free Operation: By selecting an appropriate dimming frequency, PWM dimming effectively eliminates flicker, which is critical for prolonged viewing in TV studios and conference rooms, reducing eye strain.
4, Extended Lifespan: PWM dimming prevents LEDs from operating under overcurrent or overvoltage conditions, thereby extending the lifespan of lighting fixtures.
5, Energy Efficiency: Precise brightness control minimizes unnecessary energy consumption, aligning with modern green and eco-friendly principles.
Application Scenarios:
TV Lighting: Perfect Curves Through the Camera Lens
● Accurately matches camera gamma curves to prevent overexposure on faces.
● Broadcast-level precision: 0.1% brightness adjustment ensures even skin tones for news anchors.
● Color temperature deviation <50K (compared to >300K with traditional dimming).
Stage Lighting: The Drama of 0.001 Seconds
● Flicker effect response time: 1ms (human perception limit: 24ms).
● Case Study: The musical Notre-Dame de Paris used 200Hz PWM to create a flickering flame effect.
● 512 brightness levels, supporting multi-device synchronized spotlighting.
Conference Lighting: The Invisible Comfort Revolution
● Flicker index <5% (compared to >30% with traditional dimming).
● Huawei’s smart conference solution: Dynamically matches ambient light and optimizes duty cycles.
● Proven to save 35% energy and extend device lifespan by over 2.8 times.
The Golden Rules of Dimming Frequency:
1，Safety Thresholds
* Human eye safety threshold: ≥200Hz (completely eliminates perceptible flicker).
* Safe for film/TV shooting: ≥1000Hz (exceeds high-speed camera scan rates).
2， What is the Best PWM Frequency for LED Dimming?
The choice of dimming frequency is critical for PWM dimming performance and user experience. Generally, the optimal range is 1kHz to 25kHz, for the following reasons:
* Avoid Visual Flicker: Frequencies below 100Hz may cause noticeable flicker, leading to eye strain. Frequencies above 1kHz leverage the human eye’s persistence of vision to eliminate visible flicker.
* Reduce Audible Noise: Frequencies between 200Hz and 20kHz may produce audible noise. To avoid this, frequencies should exceed 20kHz, ensuring no interference for live audiences or recording equipment in stage and film lighting.
* Meet Professional Demands: For high-definition recording, such as TV broadcasts or stag performances, frequencies above 25kHz ensure flicker-free footage and superior image quality.
3，What Happens if PWM Frequency is Too High?
A. Benefits of High-Frequency PWM Dimming:
* Reduced Eye Strain: Frequencies above 2kHz significantly reduce flicker sensitivity, minimizing eye fatigue and headaches.
* Improved Image Quality: High-frequency PWM reduces flicker, allowing cameras to capture clearer, more stable images.
* Precision Dimming: High-frequency PWM enables precise brightness adjustments from maximum to minimum levels.
B. Limitations of High-Frequency PWM Dimming:
Flicker at Low Brightness: At low brightness levels, high-frequency PWM may still cause noticeable flicker, which can be uncomfortable for light-sensitive individuals.
Increased Cost and Complexity: High-frequency PWM requires more sophisticated circuit design and higher switching frequencies, raising costs.
Electromagnetic Interference (EMI) and Noise: High-frequency PWM can generate electromagnetic noise, potentially disrupting other equipment.
Limited Dimming Range: In some high-end applications, high-frequency PWM may reduce the dimming range of LED drivers.
What is the Best PWM Frequency for LED Dimming?
In summary, PWM dimming technology, with its high precision, flicker-free operation, and other advantages, is the ideal choice for TV, film, stage, and conference lighting. The optimal dimming frequency depends on the specific application, typically ranging from 1kHz to 25kHz. This range avoids visual and auditory interference while meeting professional lighting requirements. By leveraging PWM dimming effectively, we can deliver a more comfortable, detailed, and efficient visual experience while satisfying the rigorous demands of professional lighting.
Golden Frequency Formula: Ideal Frequency = Camera Frame Rate × 20 + Environmental Interference Compensation.
High-Frequency Heat Compensation: Increase heat dissipation area by 10% for every 1kHz increase.
Future Trends:
AI Dynamic Frequency Adjustment: Automatically optimizes PWM parameters based on environmental temperature and humidity.
Hybrid Dimming 2.0: Combines PWM and DC dimming to achieve 16-bit control precision.
Nanosecond Response: GaN (Gallium Nitride) chip technology enables MHz-level dimming, pushing flicker control beyond human perception and enabling artistic precision. PWM is redefining the language of light.
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