Lumichips integrates the complete AC driving circuit into a single chip-level constant-current source. Mounted directly onto the light source board, it runs from 3 V to 220 V with built-in surge protection - so luminaires need no external driver at all.
Lumichips is a high-tech semiconductor enterprise specializing in the R&D and sales of AC LED constant-current driver ICs (CRD). Headquartered in China, our core team has accumulated more than ten years of in-depth technical know-how and extensive industry experience in driver IC design and LED lighting applications.
We supply chip-level light source solutions featuring driver-free design, high-precision constant current and wide voltage adaptability to lighting manufacturers worldwide - simplifying lighting design from the silicon up.
R&D and sales of AC LED constant-current driver ICs (CRD).
Headquartered in China, serving lighting manufacturers worldwide.
Lab demonstration - fully automatic dual workstation die bonder and die bonding process.
The lighting industry has long been confronted with a structural challenge: as current-driven devices, LED chips require precise constant-current driving to deliver optimal performance. Conventional solutions rely on external switching power supplies, which not only raise BOM costs and assembly complexity but also stand as the leading cause of failures in LED luminaires.
No driver. Just light - the design constraint that reshaped our roadmap.
A driver adds a separate board, connectors, wiring and a matching step on the production line.
Distributed "one driver per lamp" wiring multiplies connectors, labour hours and on-site complexity.
Electrolytic capacitors and solder joints age fastest - and take the whole luminaire down with them.
Switching conversion and long wiring paths waste energy as heat, shortening LED service life.
We integrate the entire driving circuit into a single CRD constant-current chip, which can be mounted directly on the light source board. AC power is fed straight into the chip without any external driving components.
The CRD chip maintains highly stable current across a wide voltage range from 3 V to 220 V. Equipped with built-in surge protection, it withstands the harshest power grid conditions worldwide.
The Lumichips CRD series are linear driver solutions specially designed for LED lighting. No inductors, transformers or electrolytic capacitors are needed - one single chip constitutes a complete driving solution.
Each CRD generation is specified around a single question: what would the luminaire look like if the driver simply disappeared?
No external driver power supply required; AC input connects directly to the chip. Cost-saving, space-saving and labour-saving, with roughly half the failure points of a conventional build.
Highly accurate current output verified by actual test data, with stable constant-current output. Flicker-free, stable colour temperature, and maximum LED chip service life.
Low startup voltage down to 3 V with full coverage up to 220 V. Compatible with power grids worldwide - no component replacement required.
Built-in surge protection, expandable up to 10,000 V. No damage during thunderstorms and rock-solid stability in industrial environments.
Resistor current limiting looks cheap on the component list and expensive everywhere else - in heat, in solder joints, in flicker and in installation time.
| Dimension | Integrated driver IC | Resistor light source |
|---|---|---|
| Current stability | Built-in IC closed-loop control delivers absolutely constant current. | Current fluctuates drastically with input voltage and temperature variations. |
| Input voltage adaptability | Wide voltage range - typically 6 V-24 V or wider, with fully unchanged brightness. | Extremely narrow range. Overvoltage causes burnout, undervoltage dims the light. |
| Light uniformity | Excellent. The IC sets precise current, unaffected by VF dispersion. | Poor. Beads with lower VF hog current while higher-VF beads stay dim. |
| Thermal management | Built-in Over-Temperature Protection automatically reduces current to prevent burnout. | No protection. VF drops under heat, triggering sharp current surge and thermal runaway. |
| Dimming performance | Deep stepless dimming to 0.1% with no stepped flicker across the range. | Fixed gears or narrow-range PWM only - grayscale jump and flicker at low brightness. |
| Cost & installation | Eliminates "one driver per lamp" - lamps connect to the bus in parallel with fewer connectors. | Every LED bead needs its own resistor soldering, doubling solder joints and hidden faults. |
48 V low-voltage and AC driver-free architectures, intelligent control and wiring-free retrofit - field-proven across data centres, research campuses, studios and retail.
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