Description
Keystone SmartCurrent Constant Current LED Driver, 12W Max Power Output, Universal 120-277V Input, Programmable Fixed Output Current 120-500mA (factory default 500mA), 10-56Vdc Output, Analog 0-10V Dimming, Integrated USB-C Port (cable included) for Field Programming
Keystone SmartCurrent 12W Programmable LED Driver (KTLD-12-UV-SC500-56-VDIM-AF1 /USB)
The Keystone SmartCurrent KTLD-12-UV-SC500-56-VDIM-AF1 /USB is a compact, programmable constant-current LED driver engineered for commercial downlights, troffers, and architectural fixtures. Delivering up to 12 watts with an adjustable output current up to 500mA via Keystone’s SmartCurrent USB programming interface (USB-C to USB-C Cable (included with driver), this driver features universal 120–277V input, smooth 0–10V dimming down to 1%, Class P thermal compliance, and a space-saving compact metal “AF1” enclosure with dual-exit wiring capabilities.
Key Features & Performance Benefits
- Field & Factory Programmable (/USB): Features a dedicated USB programming port compatible with the Keystone SmartCurrent cradle/cable tool to precisely set output current in 1mA increments without needing to power the unit. USB-C to USB-C Cable (included with driver).
- Wide Output Range: Provides constant current output adjustable up to 500mA with a compliant 10–56V DC forward voltage operating window.
- Architectural Dimming: Integrated 0–10V continuous analog dimming delivers flicker-free, smooth fade-to-off down to 1% minimum light levels.
- Versatile AF1 Enclosure: Designed with dual-exit knockouts and mounting tabs allowing either traditional side lead connections or clean bottom-exit junction box mounting for recessed commercial cans.
- Safety & Compliance: UL 8750 Recognized, Class 2 Output, UL Class P listed, Type HL rated for hazardous environments, FCC Title 47 Part 15 Class B compliant, and protected against over-voltage, short-circuit, and thermal overloads.
Electrical Performance Data
| Specification | Details |
|---|---|
| Max Output Power | 12 Watts |
| Output Current Range | Programmable up to 500mA (100–500mA nominal) |
| Output Voltage (DC) | 10–56V DC (Class 2 output) |
| Input Voltage | Universal 120–277V AC (50/60 Hz) |
| Dimming Type | 0–10V Dimming (1% Minimum) |
Frequently Asked Questions
What does "KTLD-12-UV-SC500-56-VDIM-AF1 /USB" stand for in Keystone's catalog?
"KTLD" designates Keystone Technologies LED Driver, "12" indicates 12W max wattage, "UV" stands for Universal Voltage (120–277V), "SC500" denotes the SmartCurrent programmable series up to 500mA, "56" specifies the 56V max DC output, "VDIM" indicates 0–10V dimming, "AF1" denotes the compact metal housing form factor, and "/USB" designates the USB port programming method.
How is the output current programmed on this driver?
Output current is programmed via the built-in USB interface using Keystone’s SmartCurrent desktop software and handheld USB programmer cable. The programming process operates unpowered, allowing fast pre-configuration in the shop or field without connecting AC line power. USB-C to USB-C Cable (included with driver).
Can this driver be installed in fixtures where 0–10V dimming wires are not connected?
Yes. If dimming controls are not used, simply cap the purple and gray (or pink) 0–10V dimming control wires individually. The driver will operate normally as a standard non-dimming constant current driver at 100% programmed output.
Spec Sheets
Download the official manufacturer documentation and specifications:
Keystone KTLD-12-UV-SC500-56-VDIM-AF1 /USB Specification Sheet
Additional Information
Our Part No.: |
KT-FIN-26 |
Manufacturer Part No.: |
KTLD-12-UV-SC500-56-VDIM-AF1 /USB |
Manufacturer Material Code: |
FIN-26 |
Brand: |
Keystone |
Fixture Type: |
LED |
Driver Type: |
Constant-Current-Programmable |
Input Voltage: |
120-277V (Universal) |
Max Output Power: |
12W |
Max Output Current: |
500mA |
Output Current Factory Setting: |
500mA |
Output Current Programmable Range: |
120-500mA |
Max Output Voltage: |
56V |
Output Voltage Range: |
10-56V |
Dimming: |
Analog (0-10V) |
Product Data Sheet: |
See PDF Link Provided |
Location Rating: |
Dry/Damp |
Dimensions: |
4.89" L x 1.30" W x 0.79" H; Mounting Center 4.57" |
UL Class: |
Class 2 |
Warranty: |
Manufacturer's |
Case Size: |
10 |
