LED COBs, Engines, Modules, Strips
1. COBs (Chip on Board LED)
Definition and Features: COB technology directly packages multiple LED chips on a substrate to form a highly integrated light-emitting unit with the characteristics of high brightness, low thermal resistance, and compact design.
Typical Products:
Lumileds’ LUXEON XR-M series COB modules support 700mA test current and a luminous flux of 3158lm (typical value), suitable for linear light strip design.
LUXEON CoB Core Range Gen 3 series COB modules use rectangular packages and have a luminous efficacy of 141 lm/W (300mA test current).
2. LED Engines
Function and Design: Plug-and-play modules with integrated drive circuits and optical structures simplify the development process of terminal products. For example, Dialight’s LML6LVWWFR engine supports PWM dimming, is compatible with 220V voltage, and is suitable for linear lighting scenarios.
3. LED Modules
Classification and Parameters:
Industrial-grade modules such as Seoul Semiconductor’s SMJDA3023220 have a power of 16W, support 220V input, and a color rendering index (CRI) ≥70.
Linear modules such as the LUXEON XR-M series use a 132mm×33mm package, are compatible with a maximum current of 1.05A, and are suitable for high-lumen demand scenarios.
4. LED Strips
Structure and Application: Flexible or rigid linear light strips are mostly used for decorative lighting or functional lighting. For example, the LUXEON XR-M series linear light strips use a convex mirror lens design, a color temperature of 4000K, and a light efficiency of 137 lm/W.
5. Technical Parameter Comparison
|
Category |
Typical Current |
Luminous Flux/Efficacy |
Package Size |
|
COB Module |
300–700mA |
141–137 lm/W |
16×19mm to 132×33mm |
|
LED Engine |
220V Input |
Support PWM Dimming |
Standard Linear Design |
|
LED Strip |
≤1.05A |
3158lm (Typical Value) |
Flexible/Rigid Optional |
6. Application Fields of LED Lighting
Industry and Home: Smart Home Lighting, Industrial Control Equipment.
Decoration and Architecture: Linear light strips are used for commercial space decoration or architectural outline lighting.
Note: Some products such as Lumileds L2M0-4070003MC3300 have been discontinued, and you need to pay attention to alternative models.