GE 68662 75W Halogen Transformer, 240V to 12V, Trailing Edge Dimmable, Black

GE 68662 Lightech — 75W Halogen Electronic Step-Down Transformer, 240V to 12V, Trailing Edge Dimmable, Black

The GE 68662 Lightech is a 75-watt halogen electronic step-down transformer from GE Lighting, designed to convert 240V line voltage to 12V low-voltage output for low-voltage halogen and compatible LED lighting systems in signage, architectural, downlight, and track lighting applications. Trailing edge (ELV) dimmable, 94% efficiency, 0.95 power factor, 11.7V output voltage, 20-75W output wattage range, -10°C to +50°C ambient operating range, 85°C maximum case temperature, black housing. Verify wattage range, input voltage, and dimming compatibility before ordering.

Technical Specifications

Product Overview

The GE 68662 is a 230-240V-input electronic step-down transformer converting line voltage to 12V low-voltage output for halogen MR16, MR11, and other low-voltage lamp systems, as well as compatible constant-voltage 12V LED fixtures. This is the 240V input version within GE's 75W Lightech transformer family — distinct from the standard 120V version (66945–66953) — intended for installations on 240V circuits common in certain commercial, international, or specialty residential applications.

GE Lightech transformers use Auto-Thermal Regulation to proportionally reduce output voltage above 90°C case temperature, with a self-preserving 125°C thermal cut-off for protection against sustained overheating. Field-effect transistor design delivers higher efficiency and longer service life than older bipolar transistor transformers. This unit supports trailing edge (ELV) dimming and is housed in a black case for installations where housing color matters aesthetically.

Compatible Applications

• 240V low-voltage halogen installations — Step-down power for MR16, MR11, and other 12V halogen lamp systems on 240V circuits.
• Signage and display lighting — Compact transformer for low-voltage signage and architectural accent lighting.
• Dimmable low-voltage installations — Trailing edge (ELV) dimmer compatible for variable light level control.
• International or specialty 240V residential/commercial installations.

Before Ordering — Verify

• Input Voltage: This transformer requires a 240V input circuit — not compatible with standard 120V circuits. Confirm your circuit voltage before ordering.
• Total Connected Load: Confirm total connected lamp wattage falls within the 20–75W output range to avoid flicker or instability, especially when dimming.
• Dimmer Compatibility: If dimming, confirm your dimmer is a trailing edge (ELV) type.
• Case Temperature Rating: Note the 85°C maximum case temperature — lower than the standard 120V version's 90°C rating. Confirm adequate ventilation in the installation location.
• Physical Fit: Confirm 2.52" x 1.34" x 0.83" fits within your fixture's transformer compartment.

Safety and Installation Guidelines

• Disconnect power before installing or servicing.
• 240V Circuit Only: Confirm circuit voltage matches before connecting — do not install on 120V circuits.
• Wire per the diagram printed on the transformer label.
• Do not exceed the rated output wattage range. Overloading or underloading can cause overheating, instability, or premature failure.
• Ensure adequate ventilation around the transformer to support the thermal regulation system.
• Install in accordance with applicable national and local electrical codes.

Compliance

• Verify UL/CSA/CE listing and additional compliance details with the GE manufacturer specification sheet prior to use in regulated installations.

Ordering Information

• Brand: GE Lighting — Lightech
• GE Order Code: 68662
• Input / Output: 240V / 12V (11.7V actual)
• Output Range: 20–75W
• Housing: Black
• Packaging: Sold individually.
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

For wholesale pricing, bulk availability, or help confirming the correct replacement transformer, contact ADL Supply at 1-800-235-3489.