What Is Dim-to-Warm Technology?
Dim-to-Warm (sometimes written as DTW or 4MDV) is an advanced LED technology that changes both brightness and colour temperature as you dim, just like a traditional incandescent or halogen bulb did.
How It Works
Standard LED bulbs maintain a fixed colour temperature regardless of how bright they are. If you set a 2700K bulb to 20% brightness, it still emits 2700K light; it just looks dimmer.
Dim-to-Warm bulbs are different. As you reduce the brightness, the colour temperature automatically shifts warmer:
| Brightness Level | Approx. Colour Temperature |
|---|---|
| 100% (full brightness) | ~2700K (warm white) |
| 50% | ~2200K (soft amber) |
| 10-20% | ~1800K (candlelight glow) |
This creates a natural, atmospheric progression that feels organic and luxurious, much closer to the experience of dimming a halogen or incandescent bulb.
Why It Matters
When you dim a standard LED to a very low level, the cool-white or neutral undertones in the light can become more apparent, making the ambience feel clinical or flat. Dim-to-Warm eliminates this problem by pushing the colour temperature into the warm amber range at low levels.
This makes it ideal for:
- Living rooms and dining areas where you want a relaxed, intimate atmosphere in the evenings
- Bedrooms where warm, low-level light supports healthy sleep routines
- Restaurants, bars and hospitality where ambience is part of the experience
- Feature lighting such as pendants and statement fittings where you want maximum visual warmth
Dim-to-Warm vs. Standard Dimmable LEDs
| Feature | Standard Dimmable LED | Dim-to-Warm LED |
|---|---|---|
| Changes brightness when dimmed | Yes | Yes |
| Changes colour temperature when dimmed | No | Yes |
| Mimics incandescent/halogen feel | No | Yes |
| Ideal for ambience and mood lighting | No | Yes |
Does Dim-to-Warm Require a Special Dimmer?
Yes. Dim-to-Warm bulbs need a compatible LED dimmer switch to work correctly. We recommend using a compatible LED trailing-edge dimmer. For customers in Australia and New Zealand, our DimEzy range is designed and tested specifically for use with Dulora globes, including our Dim-to-Warm range.
Using an incompatible dimmer may result in the colour shift not working, visible flicker, or the bulb not dimming smoothly.
Dulora Dim-to-Warm Range
Browse our Dim-to-Warm bulbs at dulora.com. If you are not sure which model suits your fitting or fixture, our team is happy to help. Contact us or call +61 2 8880 9033 (weekdays 8am-6pm AEDST).