Electronic lighting transformer Osram HTM 105/230…240 Input 230V Output 11.4V

The Osram HTM 105/230…240 is an electronic lighting transformer by Ledvance that converts 230–240 V mains voltage to a stable 11.4 V output for low-voltage lamps. It features a compact functional design (108 × 52 × 33 mm) for space-critical installations and supports 50–60 Hz input frequency. The device provides protective operation across the entire partial-load range to help extend lamp life and includes strain relief compatible with different cable types.

Advantages

The transformer is dimmable on both leading-edge and trailing-edge phase-cut dimmers and delivers very low power loss due to high efficiency. Its extremely compact form factor allows installation in confined spaces, and the protective operation over varying loads ensures reliable performance and longer lamp lifetime.

Suitable for

• Effect and accent lighting
• Living rooms
• Object and shop lighting
• Conference rooms and event rooms
• Restaurants
• Recessed and surface-mounted furniture fixtures

Key specifications

• Brand: Ledvance
• Model: Osram HTM 105/230…240 (MPN O0442334, EAN 4050300442334)
• Input voltage: 230–240 V
• Output voltage: 11.4 V
• Input frequency: 50–60 Hz
• Dimensions: 108 × 52 × 33 mm
• Dimmable: leading-edge and trailing-edge
• Design: compact transformer for space-critical installation

How to use

Install the Osram HTM transformer according to local electrical regulations. Connect the mains input to 230–240 V supply and the low-voltage output to compatible 11.4 V lamps. Use the built-in strain relief to secure different cable types. When dimming, select compatible leading-edge or trailing-edge phase-cut dimmers. Ensure adequate ventilation and avoid placing the transformer inside fully enclosed, heat-trapping housings.

Usage recommendations

For long lamp life and reliable operation, operate the transformer within its specified input range, use compatible dimmers, and allow enough clearance for heat dissipation in space-critical installations.