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FREE DELIVERY FOR ORDERS OVER €150 IN FINLAND / ORDERS BEFORE 2 PM WE TRY TO SHIP THE SAME DAY
FREE DELIVERY FOR ORDERS OVER €150 IN FINLAND / ORDERS BEFORE 2 PM WE TRY TO SHIP ON THE DAY
Osram HALOTRONIC-COMPACT HTM/HTN 105 electronic transformer 35–105W 230–240V – 108x52x33mm
Osram HALOTRONIC-COMPACT HTM/HTN 105 electronic transformer 35–105W 230–240V – 108x52x33mm
Osram HALOTRONIC-COMPACT HTM/HTN 105 electronic transformer 35–105W 230–240V – 108x52x33mm

Osram HALOTRONIC-COMPACT HTM/HTN 105 electronic transformer 35–105W 230–240V – 108x52x33mm

SKU 4050300442334
€55.45 - €55.45
€55.45
€55.45 - €55.45
€55.45

includes VAT 25.5% Shipping costs are calculated at checkout.

Availability:
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The Osram HALOTRONIC-COMPACT is an electronic transformer for 12V halogen and LED systems, with a load range of 35–105W. Its compact design (108 × 52 × 33 mm) fits inside furniture or dropped ceilings. The secondary voltage of 11.3–11.4V meets the precision requirements of LED systems better than a traditional iron-core transformer.

E-number 4031020 · Product code 4050300442334 · Dimensions 108 × 52 × 33 mm · 4 outputs

Technical specifications

  • Type: electronic transformer for 12V systems
  • Input voltage: 220–240V AC, 50/60 Hz
  • Secondary voltage: 11.3–11.4V
  • Load range: 35–105W
  • Outputs: 4 pcs
  • Dimensions: 108 × 52 × 33 mm
  • Protection class: IP20 (indoor use)
  • Service life: typically 50,000 h in normal use
Compatibility and installation

Suitable for: 12V halogen lamps (GU5.3, G4, G6.35) as well as 12V LED lamps whose manufacturer specifies compatibility with electronic transformers. With LED systems, ensure that the minimum load is met — a single small LED may not be enough to trigger the transformer.

Dimming: this model (HTM/HTN series) is a non-dimmable version. If you want a dimmable system, you need an HTi series transformer and a compatible dimmer.

Installation checklist:

  1. Calculate the total power of the connected lamps — at least 35W, at most 105W.
  2. Use a separate transformer for each lamp line if the total power exceeds 105W.
  3. Place the transformer in a location accessible for replacement — not in a sealed, insulated space.
  4. Always have the installation performed by a licensed electrician.

Browse the transformer selection or check the warranty terms of our partners.

Power: 35-105W

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Delivery

We ship your order from our warehouse in Jyväskylä. Orders placed before 2 PM are usually shipped on the same day. Free delivery within Finland for orders over €150.

Warranty

Products purchased through Lumenled come with a manufacturer's warranty, supported by Lumenled in cooperation with the importer. You can find detailed warranty terms here: Warranty terms of our partners.

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Usein kysytyt kysymykset

Is this transformer suitable for LED lamps?

Yes, if the LED lamps are designed to work with an electronic transformer — the manufacturer will state this in the product information. Ensure that the total power of the lamps is at least 35W (the transformer's minimum load) — with low-wattage LED lamps alone, the transformer may not start. A simple rule: at least 7 pieces of 5W LED lamps on the same circuit.

Can an old iron-core transformer be replaced with this?

Yes, if the load range (35–105W) is suitable for the system. An electronic transformer is significantly lighter (approx. 125 g vs. 1–3 kg) and more energy-efficient. The secondary voltage of 11.3–11.4V is more precise than in a traditional transformer, which extends the service life of LED lamps.

Is the transformer dimmable?

No. The HTM/HTN series is a constant-power transformer. For dimmable systems, you need an Osram HALOTRONIC HTi series transformer and a compatible trailing-edge or 1–10V dimmer.

How many lamps can I connect?

Depends on the wattage of the bulbs. Examples: 20W halogen MR16: 2–5 pcs (40–100W). 5W LED MR16: 7–20 pcs (35–100W). 3W LED G4: 12–34 pcs (36–102W). Keep the total wattage well below 105W to avoid overloading — use a separate transformer for longer bulb strings.