EF-DC-2A DC DC Converter, high efficiency Up to 98%, No electrolytic capacitors, long life of 50,000 hours, high-precision constant voltage output, dedicated to 20w the following, all types of LED panels, to meet the EN55022classA, EN61000, EN60555 requirements

1. high efficiency（Up to 98%）
2. 2.5A Continuous Output Current
3. ±0.5% constant voltage
4. Stable with Low ESR Ceramic Output Capacitors
5. Input Under Voltage Lockout
6. Cycle-by-Cycle Over Current Protection
7. Waterproof IP67
8. Very small size 44x23x12.8mm
9. 3 year warranty
Input:DC12~24V Output:DC9.6V Max 2.5A

EF-DC-8A DC DC Converter, high efficiency Up to 96%, Use Aluminum solid capacitors. long life of 50,000 hours, high-precision constant voltage output, dedicated to 90w the following, all types of LED panels, to meet the EN55022classA, EN61000, EN60555 requirements

1. high efficiency（Up to 96%）
2. 8A Continuous Output Current
3. ±0.5% constant voltage
4. Stable with Low ESR Aluminum solid capacitors
5. Input Under Voltage Lockout
6. Cycle-by-Cycle Over Current Protection
7. Waterproof IP67
8. Very small size 58x35x18.8mm
9. 3 year warranty
Input:DC12~15V Output:DC9.6V Max 10A

DC DC Converter and the LED panel Related issues     
1. Why use constant drive LED panel？
    LED panel lights there are a variety of sizes, power consumption, there are many, but also continued to increase in species, If you use a constant current drive, need to match each other, so will need to be very many types of constant current drive. Our LED panels, regardless of power level, input voltage is unified. For easy installation, so we use the constant voltage drive! Less than 20W power LED panel, you can use my EF-DC-2A converter. Less than 100W power LED panel, you can use EF-DC-8A converter.

2. Temperature rise, the constant voltage drive LED panel, current increases, will not damage the LED panel?
Our LED panel with full Aluminum plate heat, Temperature Rise is very small, Different models according to specifications, the relative Ambient Temperature, temperature rises are 5°C, 10°C, 15°C. We tested the highest temperature rise model RX-ALF5050-25, at Ambient Temperature 55°C , LED panel, the surface temperature of 70 ° C, Current rise is less than 10%( Relative Ambient Temperature 25°C). We produce the LED panels are all derating of 10% -20%,That is our LED panel, when the ambient temperature of 55 °C, as stable and reliable! Together with our DC DC converter has a very good stability, measured at 80°C ambient temperature, can be reliable. We tested,LED panel an additional 30% of the current; also stability.

9.6V LED module schematic circuit diagram
Use 1Ω resistors, resistive losses accounted for 0.2% of LED power consumption is almost negligible

12V LED module schematic circuit diagram
Using the 120Ω resistor, the resistance loss accounted for 25% of LED power