1. Introduction
The OSRAM PrevaLED Core Z4 LED modules integrate a control board, an LED holder, and an OSRAM Soleriq S19 COB LED. This design offers a compact and efficient lighting solution for various industrial applications.
The control board features two interfaces, enabling simplified wiring and flexible current adjustment (0.1 A to 5 A) based on system configuration and load. It supports multiple LED modules in parallel, series, or mixed circuits, and includes integrated thermal protection.
Product Advantages:
- Easy Integration: Designed for straightforward integration, compatible with Zhaga-compliant reflectors for various luminous fluxes.
- Thermal Protection: Features reversible thermal shutdown to prevent overheating.
- Efficient Cooling: Optimized efficiency and high maximum operating temperature facilitate cooling.
- Upgrade Compatibility: Identical housing allows for easy upgrades from PrevaLED Core Z3 modules.
- Driver Flexibility: Offers flexibility in selecting drivers for intelligent and economical systems.
- Simplified Lamp Design: Can be combined with OTi DALI drivers for easier lamp design.

Figure 1: OSRAM PrevaLED Core Z4 LED Module. This image shows the top view of the assembled LED module, highlighting its compact, circular design with the central yellow COB LED emitter.
2. Setup and Installation
Proper installation is crucial for the optimal performance and longevity of the PrevaLED Core Z4 module. Ensure all connections are secure and follow local electrical codes.
Wiring and Connections:
- The control board features two interfaces for simplified wiring.
- Current adjustment is easy, ranging from 0.1 A to 5 A, depending on the system configuration and load.
- Multiple LED modules can be connected in parallel, series, or a combination of both.
- Connection is made via spring clamps, compatible with both stranded and solid wires.
- The module can operate with SELV and DC ballasts (up to 60 V) without requiring additional isolation.
Thermal Management:
The module includes integrated thermal protection. Ensure adequate cooling is provided to maintain optimal operating temperatures and prevent the reversible thermal shutdown from activating.

Figure 2: Exploded view of the PrevaLED Core Z4 module. This image illustrates the main components: the printed circuit board (PCB) with the COB LED, and the separate LED holder, showing how they assemble.
3. Operating Considerations
The PrevaLED Core Z4 module is designed for integration into various lighting systems. Its operation is primarily controlled by the connected LED driver.
- Driver Compatibility: The system is adapted for use with Optotronic OTe, OT Fit, and OTi DALI ballasts/drivers.
- Color Temperature Options: Available in various color temperatures, including 2700 K, 3000 K, 3500 K, and 4000 K. This specific model is 4000 K (Neutral White).
- Thermal Management: The module features a reversible shutdown mechanism on the module itself or thermal throttling when used with OTi DALI drivers, protecting against excessive temperatures.
4. Maintenance
The OSRAM PrevaLED Core Z4 LED module is a sealed unit and does not require user-level maintenance. For optimal performance and longevity, ensure the following:
- Cleanliness: Keep the module free from dust and debris, which can impede heat dissipation.
- Environmental Conditions: Operate the module within its specified environmental conditions (temperature, humidity) to prevent premature failure.
- Cooling: Ensure that the cooling system (e.g., heatsink) connected to the module is functioning correctly and is not obstructed.
5. Troubleshooting
The PrevaLED Core Z4 module is designed for reliability. Most issues are related to external factors or system integration.
- Module Not Lighting Up:
- Verify power supply to the LED driver.
- Check all wiring connections for proper polarity and secure contact.
- Ensure the LED driver is compatible and functioning correctly.
- Intermittent Operation or Dimming:
- Check for overheating. The module has a reversible thermal shutdown. If it's too hot, it may dim or shut off temporarily. Improve ventilation or heatsinking.
- Inspect connections for loose contacts.
- Verify the LED driver's output current and voltage are within the module's specifications.
- Color Shift or Uneven Light:
- Ensure the module is operating within its specified temperature range. Extreme temperatures can affect color stability.
- Check for any physical damage to the COB LED surface.
If issues persist, consult a qualified electrician or contact OSRAM technical support.
6. Specifications
| Feature | Value |
|---|---|
| Model Number | PrevaLED Core Z4 - 4000K (PL-CORE-Z4-2000-840) |
| Brand | OSRAM |
| Color Temperature | 4000 K (Neutral White) |
| Color Rendering Index (CRI) | Min. 80 (typical 82) |
| Luminous Flux | 2080 lm |
| Power Consumption | 16 W |
| Voltage | 47 V |
| Beam Angle (50% IV) | 120° |
| Luminous Efficacy | Typ. 130 lm/W |
| Compliance | CE, UL |
| Number of Items | 1 |
| Technology | OSRAM Opto Semiconductors chip technology |

Figure 3: Technical drawing of the PrevaLED Core Z4 module. This diagram provides precise dimensions in millimeters, including overall diameter (Ø50), height (7.0), and mounting hole spacing, essential for integration.

Figure 4: Close-up view of the PrevaLED Core Z4 Printed Circuit Board (PCB). This image details the electronic components, including the COB Soleriq S19 LED, and connection points on the PCB.
7. Warranty and Support
Warranty information for the OSRAM PrevaLED Core Z4 LED Module is typically provided at the point of purchase or can be found on the official OSRAM website. Please retain your proof of purchase for warranty claims.
For technical support, product inquiries, or service, please refer to the contact information provided by your distributor or visit the official OSRAM website for customer service resources.
Manufacturer: OSRAM
ASIN: B076FB1W62





