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Description

The Keystone Technologies KTLD-20-UV-SC730-56-VDIM-AF4/USB LED Driver delivers efficient, programmable power control for your LED fixtures. Offering a 120-277V AC input and 10-56V DC output range, this 20-watt SmartCurrent driver allows precise current adjustment up to 730 mA via USB programming. With smooth 0-10V dimming down to 1%, it provides maximum flexibility and control for modern lighting systems. Ideal for architectural, task, or under-cabinet applications where reliability and precision matter.

Specifications

Dimensions

Length/Depth
5.53 in
Width/Diameter
1.3 in
Height
0.83 in
Weight
1.3 lb

Characteristics & Features

Dimmable
Yes

Electrical Information

Voltage
120-277V
Output Voltage
10-56V DC
Wattage Rating
20.0W

Item Details

SKU
KTLD-20-UV-SC730-56-VDIM-AF4 /USB
Brand
Keystone Technologies
Catalog Number
TER-37
Family
SmartCurrent
UPC
843654140810

Warranty & Certifications

Product Warranty
10 Year Limited
Lamp Life
85,000 Hours
Product Rating
Dry Rated

Frequently Asked Questions

What is an LED driver?

An LED driver is the essential power supply for modern, energy-efficient LED lighting. It converts your building's high-voltage AC power into the low-voltage DC power that LEDs need to operate. It regulates the power, protecting the sensitive LED chips from fluctuations that could cause them to flicker or fail prematurely.

What is a light ballast?

A light ballast is the traditional power supply for fluorescent and HID (High-Intensity Discharge) lamps. If you have older tube lighting, you have a ballast. It provides a burst of high voltage to get the lamp started and then controls the electrical current to keep it running steadily.

How do I choose the right wattage for my LED driver?

To ensure safety and longevity, it's best to follow the "80% Rule." Add up the total wattage of all the lights you will connect to the driver, then choose a driver with a maximum wattage rating that is at least 20% higher. For example, if your lights total 80 watts, you should select an LED driver rated for 100 watts or more.

What is the difference between a constant current and a constant voltage driver?

The key difference is what they keep stable. A constant current driver maintains a fixed output current (e.g., 700mA) while letting the voltage change. A constant voltage driver maintains a fixed output voltage (e.g., 12V or 24V) while the current varies. Use constant current for high-power LEDs and constant voltage for fixtures like LED strip lights.

How do I know if I need to replace my fluorescent light ballast?

Common signs of a failing light ballast include your lights flickering, making an audible humming or buzzing sound, taking a long time to turn on, or not turning on at all. If you've already tried replacing the bulbs and the problem persists, the ballast is the most likely cause.

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Keystone Technologies

For over 75 years, Keystone Technologies has been a leader in the lighting industry, operating under a simple yet powerful philosophy: "Light Made Easy." The brand is dedicated to creating high-quality, reliable, and user-friendly lighting solutions for commercial and industrial applications. With a massive portfolio of lamps, fixtures, and controls, Keystone is the trusted, go-to partner for contractors and lighting professionals seeking performance and simplicity.

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