What Are Low Voltage Transformers?

Low voltage transformers are devices that provide power to various forms of outdoor lighting, such as recessed lights and patio lights. These transformers provide constant power to your lighting options by transforming the standard voltage of a home power supply into the lower wattage required by many outdoor lights. Since most forms of outdoor lighting do not operate on the same line voltage supply as other kinds of home lighting, such as a standing or desk lamp, a low voltage transformer allows your outdoor lights to get the kind of power they need. Many forms of low voltage transformers include timer options so that your outdoor lighting of choice kicks on automatically without you having to worry about manually turning it on and off.

When choosing a low voltage transformer, make sure to take into account the total wattage of power needed for your lights. If you have six lights that require fifty watts each, you need a low voltage transformer that can provide at least 300 watts of power, if not more. A good rule of thumb is to make sure your low voltage transformer has 20% more wattage available than the lights plugged into it. This gives the transformer a bit of leeway and can help make sure your lights get an adequate amount of power without overdrawing your transformer.

Here are some of the different kinds of low voltage transformers and how they are used.

Best Low Voltage Transformers For The Money

Here are some of the better examples of low voltage transformers available to buy:

SaleBestseller No. 1
HitLights 24 Watt (2 Amp) 12 Volt DC LED Light Strip Power Supply - UL-Listed, 110V AC to 12V DC Transformer - Driver for LED Tape Light and Other Low Voltage Devices (Security Systems, Cameras, and More)
478 Reviews
HitLights 24 Watt (2 Amp) 12 Volt DC LED Light Strip Power Supply - UL-Listed, 110V AC to 12V DC Transformer - Driver for LED Tape Light and Other Low Voltage Devices (Security Systems, Cameras, and More)
  • 12 VOLTS DC OUTPUT SUITABLE FOR LED STRIP LIGHTS and other low voltage devices such as security cameras audio and video gear and more. Ideal for LED installations in living rooms shelving lighted cabinets toe-kicks and more
  • PLUGS DIRECTLY INTO YOUR WALL OUTLET no hardwiring no soldering no electrician or electrical experience required. Includes output cable with a standard 5.5 x 2.1mm DC jack positive tip for connecting to your strip controller or dimmer
  • USE ANYWHERE - Great for a variety of indoor / interior uses including undercabinet lighting in kitchens ambient accent lighting in bedrooms lighting toekicks in bathrooms or adding backlighting to displays decorations or book shelves
  • RATED FOR 24 WATTS / 2A - Enough power to run one roll sixteen feet of 300 LED 3528 LED strip. Dimmable with 12-volt single color PWM dimmers and compatible with RGB controllers
  • HITLIGHTS QUALITY UL-LISTED. Backed by a two year warranty from HitLights for peace of mind. Contact our US-based customer service team at any time for no-hassle troubleshooting and replacement or for any questions about purchasing or installation
SaleBestseller No. 2
LightingWill 10pcs/Pack Strip Wire Solderless Snap Down 2Conductor LED Strip Connector for 10mm Wide 5050 5630 Single Color Flex LED Strips
163 Reviews
LightingWill 10pcs/Pack Strip Wire Solderless Snap Down 2Conductor LED Strip Connector for 10mm Wide 5050 5630 Single Color Flex LED Strips
  • 2 pin connector for 10mm wide SMD5050 5630 single color LED strip
  • Working Condition: Can be able to stand up to 4A current and 0-24V voltage; Heat resistance level from -20 ~ 100 degree C.
  • One end with clip to strip, the other with wires as lead; Solderless quick snap down
  • Compatible with both waterproof and non-waterproof light strips (Please peel off silicon on the surface around soldering line area when install waterproof strips )
  • Package includes: 10x 2 pin connectors for 10mm SMD5050 5630 single color LED strip lights. Please search B01DM7GXIA on Amazon for 4 pin 10mm 5050 RGB strip connectors; Search B01DM7F052 for 8mm 3528 2835 LED strips.
Bestseller No. 3
LEDwholesalers 12 Volt DC Waterpoof LED Power Suppply Driver Transformer with 3-Prong Plug, 30W, 3207
901 Reviews
LEDwholesalers 12 Volt DC Waterpoof LED Power Suppply Driver Transformer with 3-Prong Plug, 30W, 3207
  • IP68 waterproof rating
  • Converts AC voltage to 12V DC
  • Wire leads and 3-prong plug for easy connections
  • Automatic thermal & overload cut-off, short circuit protection
  • Efficient, long life, stable, and reliable
Bestseller No. 4
YUNBO LED Power Adapter Supply AC 100-240V to DC 12V 3A Transformers For LED Strip Lights 36W Max
2 Reviews
YUNBO LED Power Adapter Supply AC 100-240V to DC 12V 3A Transformers For LED Strip Lights 36W Max
  • Input: AC 100-240V 50/60Hz ,Output: 12V 3A,Max Wattage: 36W ,DC
  • Cable Length about: 90cm,The adapters Connector: inside positive (+) . outside negative (-)
  • Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection.
  • Suitable for 5050 2835 LED strips light or LED modules, etc.
  • Provide one year warranty, During the warranty period,free to replace damaged cargo with product.
Bestseller No. 5
LET-75 12V AC Class 2 Electronic Remote Transformer by Lightech
184 Reviews
LET-75 12V AC Class 2 Electronic Remote Transformer by Lightech
  • Max 75 watt 12 volt AC electronic transformer
  • Class 2 remote transformer
  • Input: 120 Volts, 60Hz, 0.635 Amps
  • Output max load: 11.7 Volts, 40 kHz, 6.35 Amps
  • Thermal auto reset 125c switch; UL listed
Bestseller No. 6
BINZET DC12V 2.5A 30 Watt LED Power Supply Driver Transformer AC 120V-130V to DC 12V 2.5A Output Voltage Convertor LED Strip Low Voltage Powered LED Light Regulator
55 Reviews
BINZET DC12V 2.5A 30 Watt LED Power Supply Driver Transformer AC 120V-130V to DC 12V 2.5A Output Voltage Convertor LED Strip Low Voltage Powered LED Light Regulator
  • Input Voltage 110 -130 Volt, Power 30 Wattage
  • Output Voltage 12V DC
  • Power supply for low-voltage led lights such as LED strip light, led string light
  • Constant DC voltage or current to operate optimally, easily adapt to different power supplies, have longer standby power, and are safer
  • Can convert incoming AC power to the proper DC voltage and regulate the current that flows through the LED during operation
SaleBestseller No. 7
25W Dimmable Driver LED Power Supply - ETL 12V DC Dimming LED Drivers Transformer Compatible with Lutron, Leviton and More for LED Strip Lights
1,117 Reviews
25W Dimmable Driver LED Power Supply - ETL 12V DC Dimming LED Drivers Transformer Compatible with Lutron, Leviton and More for LED Strip Lights
  • Dimming LED Drivers are compatible with virtually every AC in-wall dimmer
  • 25W Dimmable led power supply have ETL/Intertek certification,which means it has undergone safety testing
  • Dimmable Power supply SMOOTH AND RELIABLE DIMMING from 0 to 100% with no flicker
Bestseller No. 8
LED Driver 60 Watts Waterproof IP68 Power Supply Transformer Adapter 90V-260V AC to 12V DC Low Voltage Output for LED Light, Computer Project, Outdoor Light and Any 12V DC led Lights
27 Reviews
LED Driver 60 Watts Waterproof IP68 Power Supply Transformer Adapter 90V-260V AC to 12V DC Low Voltage Output for LED Light, Computer Project, Outdoor Light and Any 12V DC led Lights
  • The Model of LED Driver:Input: 90-260V AC 50/60HZ. Output: 12V DC 5A 60W
  • Automatic protection for Short circuit / overload / over voltage / over current / over temperature.Protection type: Hiccup mode, auto-recovery after fault condition is removed
  • Wide Range of LED Power Supply : Suitable for LED strip lights, led light bulbs ,Computer Project,Industrial,Outdoor Light and any 12V DC led lights
  • 100% Waterproof IP68 protect for outdoor use.Aluminum metal housing, easy for heat dissipation and ensure stability
  • High quality with 3 year warranty.LED transformer certification: IP68,CE,ROHS etc
Bestseller No. 9
LED Driver 200 Watts Waterproof IP67 Power Supply Transformer Adapter 90V-130V AC to 12V DC Low Voltage Output with 3-Prong Plug 3.3 Feet Cable for LED Light, Computer Project, Outdoor Light
10 Reviews
LED Driver 200 Watts Waterproof IP67 Power Supply Transformer Adapter 90V-130V AC to 12V DC Low Voltage Output with 3-Prong Plug 3.3 Feet Cable for LED Light, Computer Project, Outdoor Light
  • The Model of LED Driver:Input: 90V-130V AC. Output: 12V DC 16.6A 200W
  • Automatic protection for Short circuit / overload / over voltage / over current / over temperature.Protection type: Hiccup mode, auto-recovery after fault condition is removed
  • Wide Range of LED Power Supply : Suitable for LED strip lights, led light bulbs ,Computer Project,Industrial,Outdoor Light and any 12V DC led lights
  • 100% Waterproof IP67 protect for outdoor use.Aluminum metal housing, easy for heat dissipation and ensure stability
  • High quality with 2 year warranty.LED transformer certification: IP67,CE, etc
Bestseller No. 10
Craftmade T1630 Chime Transformer 30 Watts 16 Volt, Brass (2.5' x 2.13')
33 Reviews
Craftmade T1630 Chime Transformer 30 Watts 16 Volt, Brass (2.5" x 2.13")
  • TRANSFORMER DIMENSIONS: 2.5" High x 2.13" Wide, Weight 0.81 lbs
  • CAPACITY : 30 Watt , 16 Volt Only
  • COMPATIBILITY: Dual Chime Applications With All Wires More Than 50 Feet in Length
  • UL Approved for Indoor Locations
  • PRODUCT SATISFACTION GUARANTEED: 1 Year Limited Manufacturer's Warranty. If Not Satisfied Return to Seller for Refund with in 1 Year of Purchase

Types of Low Voltage Transformers

Low Voltage Transformers Items

An Example Of Low Voltage Transformers

When looking into the various types of low voltage transformers, the obvious changing factor is the wattage of each transformer. This factor aside, low voltage transformers usually come in two styles, with some additional features thrown in.

The first style of low voltage transformer is the electronic transformer. Electronic transformers are more compact than their counterparts, and as such are perfect for hard-to-reach lighting areas, such as recessed lights. Keep in mind, electronic transformers are less durable than other forms of electronic transformers, and as such need to be replaced more often to prevent shock or fire hazards and to keep them working in tip-top shape.

The second form of low voltage transformers are magnetic transformers. While larger than the electronic transformer, these transformers are more durable and can usually produce more power. With the ability to power up to 1200 watts, these transformers are perfect for larger lights and more complex lighting schemes. Bear in mind, they do tend to be a bit heavier than their magnetic counterparts, so keep that in mind when installing them.

While both kinds of transformers can come in plastic and metal options, you probably want to encase any plastic transformers in a metal housing, like a junction box, to make it easier to install. If a transformer is “enclosed” or “encased” congratulations! It’s all set for you to install and should be fairly easy to connect to a terminal block.

When picking a low voltage transformer, make sure to double check the wattage you need and the amount of lights you intend to install. Using more than one transformer is a good idea for larger lighting projects, and you can look into timer-based transformers to help take some of the micromanagement out of your outdoor lighting.

The Latest In Low Voltage Transformers

SaleNew
25W Dimmable Driver LED Power Supply - ETL 12V DC Dimming LED Drivers Transformer Compatible with Lutron, Leviton and More for LED Strip Lights
1,117 Reviews
25W Dimmable Driver LED Power Supply - ETL 12V DC Dimming LED Drivers Transformer Compatible with Lutron, Leviton and More for LED Strip Lights
  • Dimming LED Drivers are compatible with virtually every AC in-wall dimmer
  • 25W Dimmable led power supply have ETL/Intertek certification,which means it has undergone safety testing
  • Dimmable Power supply SMOOTH AND RELIABLE DIMMING from 0 to 100% with no flicker
SaleNew
Singpad Power Supply Adapter 18V 20A 360W Switching Power Supply Transformer Driver for Doorbell Interphone Access
  • 18V 20A 360W DC Regulated Switching Power Supply,IN-DOOR USE ONLY!
  • Metal housing, good heat dissipation, built-in indicator light,Compact small size, high efficiency and stable performance
  • Smart device surge protection for Shortage Protection, Overload Protection, Over Voltage Protection
  • Protection: overload, overvoltage, overcurrent, short circuit protection
  • 24-months warranty. Any questions you have, please don't hesitate to contact us. We will get you back within 24 hours.
SaleNew
HitLights LED Driver, 60W LED Dimmable Driver Transformer 110-277VAC - 12V 5A DC Electric Dimmable Power Supply for LED Strip Lights, 12V Constant LED Products
6 Reviews
HitLights LED Driver, 60W LED Dimmable Driver Transformer 110-277VAC - 12V 5A DC Electric Dimmable Power Supply for LED Strip Lights, 12V Constant LED Products
  • CONSTANT OUTPUT DIMMABLE DRIVER: Universal AC Input 100-277VAC to 12V constant voltage, up to 80% High efficiency.
  • 0-100% DIMMING LED TRANSFORMER: Smooth and reliable dimming from 0 to 100% with NO FLICKER. Please confirm the specific Wattage of the products before use to avoid flicker.
  • SAFETY CERTIFICATION: UL, cUL listed, Class 2, ClassP, Type HL. Please contact our US-based customer service team at any time for no-hassle troubleshooting and replacement or for any questions about purchasing or installation
  • FULL PROTECTION: Plastic case for dry and damp locations. It has Short Circuit/Over Loading /Over temperature protections that keep your products and projects safety working.
  • HITLIGHTS QUALITY: Compatible with Forward phase, Reverse phase, Triac, MLV, ELV Dimmers. Suitable LED lighting and moving sign applications. backed by a two year warranty from HitLights for peace of mind.

Low Voltage Transformers Video

Here is a YouTube video discussing various types of low voltage transformers:

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