Understanding LED Power Supplies
An LED power supply, often referred to as an LED driver or transformer, is essential for regulating the power required to operate LED lighting. It converts alternating current (AC) into direct current (DC) and offers various functionalities that enable users to control their LEDs effectively.
This guide will walk you through the different types of LED power supplies and how they work.
In this guide:
- LED Power Supply Voltage Options – Understanding the importance of voltage matching
- Dimmable LED Power Supply – Learn how to adjust LED brightness with dimmable power supplies
- Plug-Style LED Power Supply – Simple and efficient power options
LED Power Supply Voltage Options
One of the most critical factors when choosing an LED power supply is ensuring that the input voltage matches the output voltage of the power supply. LED lights generally operate on 5v, 12v, or 24v, and using the correct voltage is key to preventing voltage drop or malfunction.
- 5v lighting is suitable for small-scale applications, such as indoor accent lighting or external lighting with proper weatherproofing.
- 12v lighting is widely used in indoor settings like bedrooms and kitchens, while also being reliable for external use.
- 24v lighting is the most powerful and requires a 24v power supply for larger or more demanding applications.
It’s important to also consider the distinction between constant current and constant voltage outputs. Most LED strip lighting requires constant voltage power supplies, like the 60w 5v PSU, which provides a stable voltage with a maximum output current, making it ideal for multiple LEDs connected together.
For further details about our 5v, 12v, and 24v power supplies, refer to our expert guide.
Dimmable LED Power Supply
A dimmable power supply allows you to adjust the brightness of your LED lights. The two most common types are TRIAC and DALI.
- TRIAC (Triode for Alternating Current) dimmers are wired to mains power and function like a traditional dimmer switch. These are commonly used in commercial settings like event venues for controlling the intensity of light.
- DALI (Digital Addressable Lighting Interface) modules work digitally, sending dimming instructions to LED drivers. This type is often used in larger applications where multiple areas require coordinated lighting control.
We offer TRIAC and DALI power supplies, many of which include three-in-one dimming functions such as resistive dimming, 0-10v/1-10VC dimming, and pulse-width modulation (PWM) dimming.
For more in-depth information, check out our guide to dimmable LED power supplies.
Plug-Style LED Power Supply
Plug-style power supplies are straightforward and easy to use. They plug directly into an outlet and connect to the LED light with a cable. These are compact, lightweight, and ready to use right out of the box, making them ideal for quick replacements.
Our plug-in power supplies come equipped with safety features such as short circuit protection, overload voltage protection, and overload current protection, which prevent damage to your LED lighting.
Ensure that the output voltage of the plug-style power supply matches your LED lights’ input voltage. Other important considerations include operating temperatures (our models typically operate between 0-40°C) and the IP rating (Ingress Protection) for both the lights and the power supply.
For further details, consult our expert guide to plug-style power supplies.
If you need more assistance selecting the right LED power supply for your project, contact us at sales@weloveleds.co.uk or 0113 252 4706, and we’ll be happy to help you make the best choice for your lighting needs.
