



25°–50° CCT Tunable LED Zoom Profile Spotlight
The DUNDI CCT tunable LED zoom profile spotlight combines 2700–6500 K adjustable white light with 25°–50° manual zoom for theatres and broadcast studios.
- DD-PT2550A: 300 W LED version · 320 W maximum consumption
- DD-PT2550B: 200 W LED version · 230 W maximum consumption
- Average CRI ≥95 · TLCI ≥95
- DMX512 / RDM · 3-channel / 4-channel modes
- 16-bit or higher dimming · PWM ≥28 kHz
- Intelligent variable-speed fan cooling
25–50° CCT Tunable LED Zoom Profile Spotlight
The DUNDI CCT tunable LED zoom profile spotlight combines 2700–6500 K adjustable white light with 25°–50° manual zoom for theatres, broadcast studios and indoor stages. Choose DD-PT2550A with a 300 W LED version or DD-PT2550B with a 200 W LED version. Maximum fixture power consumption is 320 W and 230 W respectively.
Both models on this page use intelligent variable-speed fan cooling and the shorter 25°–50° housing shown in the product photos. Adjust colour temperature through DMX or the local rotary control, then set zoom and focus manually at the fixture. The separate DD-PT2550N is a 200 W fanless option with a longer housing.

CCT Tunable Zoom Profile Series — 9-Model Comparison
The series has six fan-cooled models and three fanless models. All nine models offer adjustable 2700–6500 K white light; the zoom range and cooling construction are selected when ordering.
| Model | Zoom Range | CCT | Maximum Power Consumption | LED Source | Cooling |
|---|---|---|---|---|---|
| DD-PT1020A | 10°–20° | 2700–6500 K | 320 W | 88 × 8 W LEDs | Fan-Cooled |
| DD-PT1020B | 10°–20° | 2700–6500 K | 230 W | 88 × 5 W LEDs | Fan-Cooled |
| DD-PT1020N | 10°–20° | 2700–6500 K | 230 W | 88 × 5 W LEDs | Fanless |
| DD-PT1530A | 15°–30° | 2700–6500 K | 320 W | 88 × 8 W LEDs | Fan-Cooled |
| DD-PT1530B | 15°–30° | 2700–6500 K | 230 W | 88 × 5 W LEDs | Fan-Cooled |
| DD-PT1530N | 15°–30° | 2700–6500 K | 230 W | 88 × 5 W LEDs | Fanless |
| DD-PT2550A | 25°–50° | 2700–6500 K | 320 W | 88 × 8 W LEDs | Fan-Cooled |
| DD-PT2550B | 25°–50° | 2700–6500 K | 230 W | 88 × 5 W LEDs | Fan-Cooled |
| DD-PT2550N | 25°–50° | 2700–6500 K | 230 W | 88 × 5 W LEDs | Fanless |
Model code: DD = DUNDI; PT = Profile Tunable (CCT-tunable profile spotlight); 1020 / 1530 / 2550 = zoom range; A = 300 W LED version; B = 200 W LED version; N = 200 W fanless version. Fanless models are available only in 200 W.
The 300 W version uses 44 warm-white and 44 cool-white LEDs rated at 8 W each; the 200 W version uses 44 warm-white and 44 cool-white LEDs rated at 5 W each. Individual LED ratings are nominal and should not be added together to calculate fixture consumption.
Key Features
- 2700–6500 K CCT adjustment via DMX or local rotary control, with 100 K increments.
- 25°–50° manual zoom and manual focus; seven-element optical system.
- Average CRI ≥95 and TLCI ≥95; TM-30 average Rf ≥92 and Rg ≥97.
- DMX512 / RDM with 3-channel and 4-channel modes.
- 16-bit or higher dimming; PWM ≥28 kHz; six selectable dimming modes.
- Variable-speed fan cooling; optional iris and gobo holder.
CCT Tunable LED Zoom Profile Spotlight Specifications
| Parameter | Specification |
|---|---|
| Models on This Page | DD-PT2550A / DD-PT2550B |
| Zoom / Focus | 25°–50° manual zoom; manual focus |
| CCT | 2700–6500 K adjustable; 100 K increments |
| LED Version | A: 300 W; B: 200 W |
| LED Source | A: 88 × 8 W LEDs; B: 88 × 5 W LEDs; 44 warm-white + 44 cool-white |
| Maximum Power Consumption | A: 320 W; B: 230 W |
| Input Voltage | AC 100–240 V, 50/60 Hz |
| Colour Rendering | Average CRI ≥95; TLCI ≥95; TM-30 Rf ≥92, Rg ≥97 |
| Control | DMX512 / RDM; local buttons and rotary encoder |
| DMX Modes | 3-channel / 4-channel |
| Dimming | 16-bit or higher; six modes; PWM ≥28 kHz |
| Cooling | Variable-speed fan; stops below 20% output, according to the datasheet |
| Maximum Fan Noise at 1 m | 300 W: ≤39 dBA; 200 W: ≤29 dBA |
| Display | OLED, Chinese / English menus; 30 × 15 mm |
| LED Lifetime | 50,000–100,000 hours, as stated in the datasheet |
| Housing / IP Rating | Aluminum alloy; IP20, indoor use |
| Operating Ambient Temperature | −25 °C to +40 °C |
| Standard Accessories | Diffusion filter; power input/output connectors; 3-pin DMX input/output connectors |
| Optional Accessories | Iris and gobo holder |
25°–50° Photometric Reference at 5 m
| Version / CCT | Luminous Flux | 25° / 50° Centre Illuminance |
|---|---|---|
| 300 W / 2700 K | 8,200 lm | 1,130 / 325 lx |
| 300 W / 6500 K | 10,400 lm | 1,551 / 488 lx |
| 200 W / 2700 K | 6,600 lm | 930 / 284 lx |
| 200 W / 6500 K | 8,300 lm | 1,196 / 381 lx |
The published 5 m beam diameter is 2.22 m at 25° and 4.66 m at 50°. Illuminance changes with zoom, throw distance and CCT. Use the DATASHEET tab for the complete distance tables rather than applying one output figure to every setting.
Selecting a CCT Tunable LED Zoom Profile Spotlight
Start with your mounting position and target area. The 25°–50° version offers wider coverage for shorter throws than the 10°–20° and 15°–30° options. Manual zoom lets the operator set the beam width at the fixture; DMX adjusts dimming, colour temperature and strobe, rather than moving the zoom mechanism.
Use warmer white settings when working with tungsten-style stage lighting, or cooler settings when matching a daylight-lit scene. A single fixture can change CCT without replacing the light source. For camera work, test your chosen CCT, dimmer level, shutter speed and frame rate together during setup.
DD-PT2550A provides the higher published output. DD-PT2550B offers lower maximum consumption. For microphone-sensitive installations, consider DD-PT2550N: it is the separate 200 W fanless version, not a fan-cooled fixture operated at a low dimmer level. There is no 300 W fanless model in this series.
For a single fixed white-light setting, compare the 25°–50° fixed-CCT profile spotlight. Explore DUNDI profile spotlights and lighting technology when planning a mixed-fixture rig.
25°–50° Manual Zoom Operation Reference
This existing 300 W profile operation video is a reference for the shared 25°–50° mechanical zoom and focus operation. It is not presented as a verified DD-PT2550 CCT-control demonstration. For this tunable-white model, follow the current USER MANUAL for the 3-channel / 4-channel map or request a live demonstration.
25°–50° Fan-Cooled Dimensions and Weight

| Parameter | Specification |
|---|---|
| Drawing Length / Height | L 730 mm / H2 520 mm; H3 270 mm |
| Front Drawing B1 / B2 / H1 | 223 / 330 / 223 mm |
| Published Size (Datasheet Table) | 77 × 29 × 29 cm |
| Packing Size | 85 × 31.5 × 33 cm |
| Net / Gross Weight | 14.5 / 16.3 kg |
The drawing labels L 730 mm, while the datasheet size table lists 77 × 29 × 29 cm. Confirm the required installation envelope before finalizing clearance. DD-PT2550N has a separate, longer housing and different weight.
CCT Tunable LED Zoom Profile Spotlight FAQ
Which 25°–50° models are covered here?
DD-PT2550A is the 300 W fan-cooled version and DD-PT2550B is the 200 W fan-cooled version. Both offer 2700–6500 K adjustable CCT. DD-PT2550N is the separate 200 W fanless version shown in the series comparison.
Can one fixture change from warm white to daylight white?
Yes. Adjust CCT from 2700 K to 6500 K using DMX or the local rotary control. The display shows the selected CCT. This differs from a fixed-CCT fixture, which supplies one colour temperature.
What do the DMX modes control?
3-channel mode provides master dimmer, CCT and strobe. 4-channel mode adds 16-bit dimmer fine control. Zoom and focus remain manual. The USER MANUAL includes the CCT-to-DMX value reference.
Is the fanless version available in 300 W?
No. All three fanless models in this series are 200 W versions with 230 W maximum consumption. Choose DD-PT2550N for a 25°–50° fanless fixture.
Are the iris and gobo holder included?
They are optional. Standard accessories include a diffusion filter and power and DMX connectors. Specify iris, gobo and connection requirements when requesting a quotation.
Where are the specifications and operating instructions?
Open DATASHEET for series parameters, illuminance tables and dimensions. Open USER MANUAL for setup, master/slave operation and DMX control. Each tab includes an embedded PDF and an open/download link.
Request a CCT Tunable LED Zoom Profile Spotlight Quotation
Send DD-PT2550A or DD-PT2550B, quantity, destination, throw distance and target beam size. Tell us your typical CCT settings, camera requirements and optional accessories. DUNDI can compare the two power versions or arrange a live showroom demonstration.
For control-protocol background, see the ESTA published lighting-control standards.
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