Ever encountered “unruly” lights? When dimming, it always feels like one step is too bright, two steps too dim? Trying to create the perfect ambiance, but it never quite hits the mark?
This may stem from low dimming precision. The higher the precision, the finer the light adjustment.
What is Dimming Precision?
Definition: The accuracy of a dimming device in controlling light brightness during adjustment.
Minimum brightness control unit: High-precision devices enable smaller brightness increments. Suretron’s smart dimming power supplies support 0.1% level adjustment, ensuring precision in ultra-fine brightness ranges.
Richness of adjustment levels: More levels mean higher precision. 8-bit dimming (2⁸=256 levels) divides brightness from 0% to 100% into 256 steps. Suretron’s DALI-2 and DMX512 dimming power supplies both support 256-level adjustment.
Stability & uniformity: High-precision dimming requires smooth, stable adjustment without flickering, jumps, or uneven brightness.
Impact of Low Dimming Precision
Brightness jumps: Causes lights to flicker between bright and dim, straining eyes and reducing comfort.
Flicker risks: Low-precision power supplies may use low-frequency dimming (cost-cutting), causing imperceptible flicker. Prolonged exposure leads to dizziness, dry eyes, etc.
Poor scene adaptability: Fails to precisely meet dimming needs of different scenarios.
Factors Affecting Dimming Precision
Dimming Technologies
PWM (Pulse Width Modulation): Controls brightness via high-frequency switching; accuracy depends on frequency and duty cycle.
Analog Dimming: Adjusts brightness through continuous current/voltage control; potentially higher precision but prone to noise.
Hybrid Dimming: Uses PWM at low brightness (to avoid analog nonlinearity) and analog at high brightness (to reduce PWM losses), balancing precision and efficiency. |
Hardware design The accuracy of actual brightness output can be affected by hardware factors such as dimmable driver design stability and the consistency of LED chips. |
Dimming Curve
Different dimming curves affect dimming smoothness; for example, a linear curve offers higher dimming precision. |
Benefits of High Dimming Precision
Higher precision enables finer brightness adjustment to meet diverse scenario needs.
Commercial spaces: Precisely restores true colors of displayed items.
Home environments: Paired with smart systems, auto-switches modes based on daily schedules.
Medical lighting: Delivers flicker-free, high-precision illumination.
SCPOWER：The High-Precision “Powerhouse”
Beyond precision, SCPOWER is a recognized leader in smart dimming. Established in 2009, it focuses on R&D and production of LED dimming power supplies. Its portfolio covers mainstream methods (DALI-2, TRIAC, 0/1-10V, DMX512, wireless) and serves home, hotel, commercial, and industrial lighting.
Wide dimming range: Supports 0.1% minimum brightness (covers all scenarios).
10W-1800W power range: Adapts to small fixtures and large systems, ensuring stable operation.
100V-277V input voltage: Easily fits global power environments.
Comprehensive protection: Short-circuit, over-temperature, overload, and open-circuit protection for safe, reliable operation.
5-year warranty: Reduces user costs and maintenance risks.
High compatibility: Works with mainstream systems (Lutron, Siemens, Philips).
Full certifications: UL, ENEC, FCC, CCC, CE, CB, SAA, RoHS, REACH (meets global safety, EMC, and environmental standards).
Full-scenario applications: Home, residential, commercial, hospitality, industrial, outdoor, decorative, and horticultural lighting.
