DEWENWILS Store: Low Voltage Transformers, Cord Reels, Timers & Essential Home Electrical Tools

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Low Voltage Transformers

Low voltage transformers convert standard 120V household power into safe, stable low voltage(12V, 13V, 14V, 15V), ensuring reliable performance and long-lasting operation for landscape lighting systems.

67 products

DEWENWILS 200W Low Voltage Transformer

200W Low Voltage Landscape Lighting Transformer - SHSLT04H1

Regular price $99.99
Sale price $99.99 Regular price $164.28
DEWENWILS 120W Low Voltage Transformer

App-Controlled(Wifi) 120W Low Voltage Landscape Lighting Transformer - SHSLT03Y

Regular price $89.99
Sale price $89.99 Regular price $127.08
DEWENWILS 300W Low Voltage Landscape Transformer WiFi with 2 Zones, Outdoor Landscape Lighting Transformer, 120V AC to 12/15V AC, Compatible with Alexa & Google Assistant

300W Low Voltage Transformer- SHTLT05A

Regular price $119.99
Sale price $119.99 Regular price
DEWENWILS 300W Low Voltage Transformer

300W Low Voltage Landscape Lighting Transformer - SHALT05A

Regular price $99.99
Sale price $99.99 Regular price $149.88
DEWENWILS 200W Low Voltage Transformer

200W Low Voltage Landscape Lighting Transformer - SHALT04E

Regular price $89.99
Sale price $89.99 Regular price $137.88
DEWENWILS 200W Low Voltage Transformer

200W Low Voltage Landscape Lighting Transformer - SHOSL04K1

Regular price $109.99
Sale price $109.99 Regular price $163.08
DEWENWILS 150W Low Voltage Transformer

150W Low Voltage Landscape Lighting Transformer - SHSLT03H

Regular price $89.99
Sale price $89.99 Regular price $134.28
Reliable Low Voltage Power for Every Outdoor Display

Best Seller You May Want

Easy Installation . Safe & Durable

App-Controlled(Wifi) 300W Low Voltage Landscape Lighting Transformer - SHWLT05A1

Regular price $149.99
Sale price $149.99 Regular price $226.68
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150W Low Voltage Landscape Lighting Transformer - SHSLT03A

Regular price $89.99
Sale price $89.99 Regular price $127.08
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Remote-Controlled 120W Low Voltage Landscape Lighting Transformer - SHDLT03R

Regular price $69.99
Sale price $69.99 Regular price $105.48
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Wattage

300W

150W

120W

Input Voltage

120V AC, 60Hz

120V AC, 60Hz

120V AC, 60Hz

Output Voltage

12V/14V AC, 60Hz

12/15V AC, 60Hz

12V DC

Independent ControlZone

3

1

1

Control Way

App-Controlled(Wifi)

Manual

Remote-Controlled

Operation Mode

Astronomical Dusk to Dawn (WiFi Only) Support Amazon Alexa, Google Assistant, Smart Life |
Random |
Circulate |
Countdown |
Schedule

Always ON |
Dusk On, Dawn Off( By PhotoCell Sensor) |
Dusk On, Timer Off 1~9H

Always ON |
Dusk On, Dawn Off( By PhotoCell Sensor) |
Dusk On, Timer Off 2/3/4/6/8H |
Dusk On, Schedule Timer Off |
Schedule Timer

Product Dimensions (L x W x H)

9.45 x 10.24 x 16.54 in

6.69 x 10.51 x 9.84 in

7.09 x 9.84 x 9.45 in

Net Weight

11.91 lbs

7.72 lbs

3.42 lbs

Low Voltage Transformer Buying Guide

1. How to Pick a Low Voltage Transformer

Choosing the right low voltage transformer starts with understanding your lighting system and future needs. Focus on these key decision points:

  • Output Voltage: Confirm whether your lights require 12V/14V AC or 12V DC
  • Total Wattage Load: Add all fixture wattages and leave 20–30% headroom
  • Control Method: Manual, timer, photocell, remote, Wi-Fi, or Matter smart control
  • Number of Zones: Single output or multiple independent zones
  • Installation Environment: Outdoor-rated housing, weather resistance, cable entry design

A well-matched transformer ensures stable brightness, safe operation, and easier expansion later.

2. DEWENWILS Low Voltage Transformer: Model Differences & How to Choose

DEWENWILS transformers are designed for different landscape sizes and control preferences. Compare models based on these dimensions:

Wattage Capacity

  • 60W–120W: Small gardens or spotlight setups
  • 200W–300W: Medium landscapes or multi-area lighting
  • 600W: Large properties or high-density lighting systems

Control Type

  • Photocell & Timer: Automatic dusk-to-dawn lighting, dusk on-countdown off
  • Remote Control: Simple long-range on/off control
  • Wi-Fi / Matter Smart: App, voice, and schedule automation

Zone Control

  • Single zone: For basic layouts
  • 2 or 3 zones: Separate pathways, patios, and garden lights

This modular lineup allows users to choose only the features they actually need.

3. Low Voltage Transformer Features & Specs to Compare

When reviewing specifications, prioritize features that directly affect performance and usability:

  • Input Voltage: Standard 120V AC household power
  • Output Voltage Options: 12V / 13V / 14V / 15V AC or 12V DC (selectable on some models)
  • Maximum Output Wattage: Determines how many lights can be connected
  • Protection Systems: Overload, short-circuit, and overcurrent protection
  • Memory Function: Retains settings after power outages
  • Housing Material: PC or metal enclosure for weather resistance

These specs define system stability and long-term reliability.

4. How Many Lights Can You Put on a Low Voltage Transformer?

The number of lights depends on total wattage, not fixture count:

  • Add the wattage of each light fixture
  • Keep total load within 70–80% of the transformer’s rated capacity

Example

  • 300W transformer: ideal load 210–240W
  • 600W transformer: ideal load up to ~480W

Leaving headroom prevents voltage drop, overheating, and premature failure.

5. How Should You Choose Between AC and DC Transformers?

Choosing AC or DC is critical for fixture compatibility:

AC Transformers (12V/14V AC)

  • Compatible with most traditional landscape lighting
  • Better for longer cable runs
  • More forgiving for mixed fixture types

DC Transformers (12V DC)

  • Required for LED fixtures designed for DC input
  • More stable voltage and consistent brightness
  • Ideal for spotlights, step lights, and signage LEDs

Always match transformer output to fixture requirements.

6. Where Is the Best Place to Put a Low Voltage Transformer?

Proper placement improves safety and sensor accuracy:

  • Install near a GFCI-protected outdoor outlet
  • Mount above ground level to avoid water exposure
  • 12 to 48 inches (0.3 to 1.2 meters) above the ground
  • Allow space for ventilation and cable routing
  • For photocell models, ensure the sensor faces natural daylight and avoids nearby artificial lights

Correct placement ensures reliable automation and easier maintenance.

7. Low Voltage Transformer Applications

DEWENWILS low voltage transformers support a wide range of outdoor lighting uses:

Different applications may require different wattage levels, voltage types, or zoning options.

8. Benefits of Using a Low Voltage Transformer

Using a properly selected low voltage transformer provides clear advantages:

  • Improved Safety: Reduced shock risk compared to line voltage
  • Fixture Protection: Stable voltage extends light lifespan
  • Energy Efficiency: Prevents overload and energy waste
  • Flexible Control: Timers, photocells, remotes, and smart automation
  • Scalable Design: Easy to expand lighting systems over time

A well-chosen transformer becomes the control hub of your entire outdoor lighting system.

Frequently asked questions

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