DOB vs. Linear for LED Flood Lights: Efficiency, and Cost Compared
Choosing the right driver technology is crucial for maximizing the performance and lifespan of LED flood lights. At OKELI, we compare DOB (Driver on Board) and Linear Drivers—two popular solutions with distinct advantages for outdoor lighting.
Design & Component Differences
DOB Drivers:
- Integrated Design: LED chips and driver share a single aluminum PCB, enabling compact fixtures.
- Components: Includes electrolytic capacitors, safety capacitors, and transformers, enhancing durability.
- Higher Cost: Advanced components increase upfront pricing.
Linear Drivers:
- Simplified Design: No electrolytic or safety capacitors, reducing component count.
- Cost-Effective: Lower production costs, ideal for budget projects.
Efficiency & Power Factor (PF)
DOB Solutions:
- 10-20% Higher Efficacy: Delivers brighter, more efficient illumination.
- PF > 0.95: Near-unity power factor reduces energy waste.
Linear Solutions:
PF 0.9-0.95: Slightly lower efficiency, leading to higher long-term energy costs.
Voltage Range & Lifespan
DOB Drivers:
Wide Voltage Input (100V-440V): Maintains stable performance for 8+ hours even at 440V.
Linear Drivers:
Limited High-Voltage Tolerance: Fails after ~2 hours at 440V.
Surge Protection & Durability
DOB Drivers:
4KV-6KV Surge Resistance: Built-in transformers protect against voltage spikes, ideal for storm-prone areas.
Linear Drivers:
Basic Protection: Less suitable for unstable power grids.
Cost Comparison
DOB: Higher initial cost but saves energy and maintenance expenses over time.
Linear: Lower upfront cost but may require frequent replacements in harsh conditions.
Comparison Table: DOB vs. Linear Driver
| Feature | DOB Solution | Linear Solution |
|---|---|---|
| Efficiency | 10%-20% higher | Standard efficiency |
| Power Factor (PF) | > 0.95 | 0.9 - 0.95 |
| Voltage Range | 100V-440V (8+ hours) | 100V-440V (2 hours at 440V) |
| Surge Protection | 4KV-6KV | 2KV-4KV |
| Electrolytic Cap | Yes | No |
| Cost | Higher | Lower |
Which One Should You Choose?
- For High Efficiency & Durability → DOB Solution (Best for commercial/industrial use)
- For Budget-Friendly Projects → Linear Solution (Suitable for residential/low-risk areas)
At OKELI Lighting, we provide high-quality LED flood lights with both drive solutions to meet your needs. Contact us today to find the best lighting solution for your project!
Upgrade your outdoor lighting with OKELI’s DOB and Linear LED flood lights. Request a quote or explore our flood light catalog for tailored solutions!
