TDK-Lambda LED Power Supplies | BeiLuo Distributor

About LED Power Supplies

High-efficiency constant current LED drivers for commercial and industrial lighting applications

As an authorized distributor of TDK-Lambda, BeiLuo provides a comprehensive range of LED Power Supplies products. These products are widely used in industrial control, automotive electronics, consumer electronics, and communication equipment. We offer a complete product line with multiple series to meet various application requirements. All products are genuine and original, backed by professional technical support and comprehensive after-sales service.

Selection Guide: How to Choose the Right LED Power Supplies

Product List

2 products available

Part Number ↕	outputPower ↕	outputCurrent ↕	outputVoltageRange ↕	efficiency ↕	inputVoltage ↕	Package ↕	Stock Status	Action
LTF150-42	150W	2100mA	36-72V	94%	90-305VAC	-	In Stock	View Details
LTH480-56	480W	5600mA	57-86V	95%	90-305VAC	-	In Stock	View Details

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Frequently Asked Questions

What is the difference between constant current and constant voltage LED drivers?

Constant current (CC) LED drivers maintain a fixed output current while voltage varies to match the LED load. They are used for: Direct LED driving where LED current must be precisely controlled

LED arrays where forward voltage may vary with temperature

Applications requiring consistent LED brightness. Constant voltage (CV) drivers maintain a fixed output voltage similar to standard power supplies. They are used for: LED strips with built-in current limiting resistors

LED modules designed for specific input voltages

Applications where multiple parallel LED strings are used. TDK-Lambda primarily offers constant current drivers as they provide better LED protection and consistent light output. Some models offer both CC and CV operation modes for flexibility.

Use constant current drivers for direct LED driving, constant voltage for LED strips and modules with internal current control.

What dimming options are available on TDK-Lambda LED drivers?

TDK-Lambda LED drivers offer multiple dimming interfaces: 0-10V analog dimming - industry standard, compatible with most controllers

1-10V dimming - European standard with different dimming curve

PWM dimming - pulse width modulation for precise digital control

DALI (Digital Addressable Lighting Interface) - two-wire digital protocol for intelligent lighting systems

DMX - stage lighting protocol for dynamic lighting effects

Resistance dimming - simple potentiometer control

Time-based dimming - internal programming for autonomous operation. Dimming range is typically 1% to 100% of rated current. The dimming curve (relationship between control signal and output) can be linear or logarithmic depending on model. Multiple drivers can be connected to a single dimming controller for synchronized operation.

Select dimming interface based on your control system - 0-10V for simple applications, DALI for intelligent lighting networks.

How do I calculate the correct LED driver current for my application?

To select the correct LED driver current: Determine LED specifications - check datasheet for rated forward current (If) and forward voltage (Vf)

Calculate total LED string voltage - multiply Vf by number of LEDs in series

Verify driver voltage range - LED string voltage must fall within driver output voltage range

Match driver current to LED rating - select driver with rated current equal to or slightly below LED rated current

Consider thermal derating - LEDs may need reduced current at high ambient temperatures. Example: LED rated 700mA, Vf = 3.0V

10 LEDs in series = 30V string voltage

Select driver with 700mA output and 25-40V voltage range. Operating below maximum rated current extends LED lifetime and reduces heat generation.

Match driver current to LED rated current, ensuring LED string voltage falls within driver output voltage range.

What is the typical lifetime of TDK-Lambda LED drivers?

TDK-Lambda LED drivers are designed for long service life matching LED fixture lifetimes: Rated lifetime is typically 50,000 to 100,000 hours at rated load and temperature

Lifetime is limited by electrolytic capacitor aging - TDK-Lambda uses high-temperature rated capacitors

Operating temperature significantly affects lifetime - every 10°C reduction doubles lifetime

High-efficiency designs generate less internal heat, extending component life

Drivers are designed for 50,000+ on/off cycles without degradation. The 5-year warranty demonstrates TDK-Lambda's confidence in product reliability. For 24/7 operation, expect 6-11 years of service life depending on model and operating conditions. Drivers include overtemperature protection to prevent damage from excessive heat.

Design for adequate thermal management to achieve rated driver lifetime of 50,000+ hours.

What surge protection do TDK-Lambda LED drivers include?

TDK-Lambda LED drivers include comprehensive surge protection for harsh electrical environments: IEC 61000-4-5 surge immunity - withstands 4kV/2kV (line-to-line/line-to-earth) surges

Ring wave surge protection - protects against utility switching transients

Differential and common mode protection - comprehensive surge suppression

Varistors and TVS diodes - clamp high-voltage transients

Protection level varies by model - outdoor and industrial models have higher protection levels. For locations with frequent lightning or severe electrical transients, external surge protective devices (SPDs) may be recommended. The high surge immunity ensures reliable operation in industrial environments and outdoor installations where electrical noise is common. All drivers meet EMC standards for conducted and radiated emissions.

For outdoor or industrial installations, select drivers with high surge protection ratings or add external SPDs.