COB Modules-Maximum optical output and ease of integration
COB (Chip on Board) solutions offer you more functionality through flexible design.
COB Modules
COB UV LEDs mount LED chips directly onto a densely packed MCPCB to improve efficiency.
→ Therefore, it features ultra-low thermal resistance, providing industry-leading reliability.
→ Violumas light bars and arrays are suitable for both retrofit projects and new designs.
Quick Navigation
Key Features of COB Modules
High Power Density
Multi-chip integrated design provides high optical output.
Excellent Thermal
Chips are mounted directly onto the substrate, reducing thermal resistance and improving heat transfer efficiency.
Uniform Light Output
Reduces hotspots and shadows.
Compact Design
Suitable for space-constrained applications.
COB Modules Series
Mid Power: 1 × 1 Series
Single-Chip COB Module
Dimensions：15mm x 15mm
Thermal Resistance：0.9°C/W
High Power: 2×2 Series
Four Chip COB Module
Dimensions：20mm x 20mm
Thermal Resistance：0.2°C/W to 0.3°C/W
● Full-spectrum COB LED Modules from 255nm to 405nm, suitable for diverse UV light application scenarios ●
UV LED Wavelengths：255nm | 265nm | 275nm | 295nm | 310nm | 325nm | 340nm | 365nm | 385nm | 395nm | 405nm
Lens Viewing Angles：30° | 60° | 90° | 120° | 130°
COB LED Module Selection Guide
When selecting a COB LED module, it is recommended to evaluate the following key factors based on specific application requirements to ensure optimal performance and reliability.
Power Requirements
step. 1
• Low-power applications → Suitable for small-size COB modules
• High-power applications → High-density COB LED modules are recommended to achieve higher irradiance
step. 2
Thermal Design
• Substrate selection：Copper / Aluminum substrates
• Thermal management：Whether to use a heat sink or active cooling system
➡︎ Proper thermal design can effectively improve the lifetime and operational stability of COB LEDs
Application Scenarios
step. 3
• UV curing
• UVC sterilization (disinfection equipment)
• Industrial lighting / inspection
Wavelength Selection
step. 4
• UVA (320–405 nm): Commonly used for UV curing and fluorescence detection applications.
• UVB (280–320 nm): Used in medical phototherapy and specific biological response regulation (e.g., plant metabolism stimulation).
• UVC (200–280 nm): Primarily used for sterilization and disinfection.
Why Choose UV LED Modules?
Compared to traditional light sources, UV LED modules offer the following advantages:
-
Instant on/off
-
Long lifetime
-
Energy efficient
-
Mercury-free (environmentally friendly)