How does a BuckPuck work?
How does a BuckPuck work?
The BuckPuck is self-contained and designed to match its output with the electrical characteristics of the LED(s). This avoids damage or thermal runaway to the LED as the BuckPuck compensates for changes in forward voltage while delivering a constant current to the LED. The BuckPuck is available with pin or wire leads.
What is a BuckBlock?
The BuckBlock is an excellent solution for powering large numbers of series/parallel connected LEDs at high currents. Power up to 15 series/parallel connected LEDs at 700mA using a single driver. External analog/digital intensity control. 0-10V Dimming compatible with many available controls.
Why do LED need constant current?
A constant current LED driver varies the voltage across the electronic circuit in order to maintain a constant electrical current. This guarantees that no matter the fluctuation in voltage, the current driven to the LED will be maintained at the specified level.
Do LEDs need a transformer?
All mains powered LED bulbs require a transformer. Depending on the bulb type, the transformer/driver may be built in to the bulb casing or may be located externally. The purpose of the transformer is to reduce mains voltage (240V) to the desired level relative to the bulb being powered (e.g. 12V or 24V).
Do 12V LEDs need a driver?
Because LEDs require a constant DC of 12v or 24v, LED drivers are required in all LED systems (except those which are specifically developed to be controlled by mains voltage power supplies such as mains voltage tape or LED bulbs).
Can LED drivers be wired in parallel?
Unfortunately, this is not possible. In order to parallel two MEAN WELL LED drivers both would need to have a ‘current sharing’ function. There is a general belief that you can connect any two power supplies in parallel if you use two diodes to isolate the supplies.
Can constant current LEDs be dimmed?
Although both constant-current and constant-voltage drivers can be made with a dimming feature, not all LEDs are dimmable — and the ones that are capable of dimming must be used with the proper dimming technology (e.g., PWM or CCR).
Can I use 12v transformer for LED?
12VAC Electronic Transformers and LED Drivers LED drivers and electronic transformers for retrofit LED lighting are not interchangeable. They differ in output and load compatibility i.e. which LED lights they will work with.
Do LEDs use AC or DC?
direct current (DC)
LEDs are intrinsically direct current (DC) devices that only pass current in one polarity and are typically driven by DC voltage sources using resistors, current regulators and voltage regulators to limit the voltage and current delivered to the LED.