Where This Spiral-Heat-Sink Downlight Works Best
FST-HY-HC07 is a recessed commercial downlight for retail stores, shopping malls, hotel lobbies, exhibition spaces and public interiors. Its deep baffle shields the light source, while the spiral-fin housing provides a larger external surface for transferring heat away from the LED module.
The range includes six sizes from 10W to 45W. Lower-power versions suit standard commercial ceilings; the larger 35W and 45W models are intended for projects with higher mounting positions or greater output requirements.
How to Select the Size and Power
| Project condition | Selection guidance |
|---|---|
| Standard retail, hotel or office ceiling | Compare the 10W and 15W versions with 90 mm, 110 mm or 135 mm cut-outs. |
| Medium commercial area | The 25W model uses a 165 mm cut-out and a 175 mm body height; check the ceiling cavity and spacing. |
| Lobby, exhibition area or taller ceiling | Review the 35W and 45W models after confirming ceiling height, room area and required illuminance. |
| Focused downward distribution | The listed 24° beam requires suitable fixture spacing to achieve the intended coverage. |
The heat-sink structure supports thermal management but does not remove the need for adequate space and ventilation above the ceiling. Confirm the full product dimensions before the opening is prepared.
What to Confirm Before Ordering
- Ceiling height, room area and target illuminance
- 90–250 mm cut-out and available ceiling depth
- 10W, 15W, 25W, 35W or 45W power
- 24° beam suitability and fixture spacing
- Input voltage, CCT, CRI and driver configuration
- Ventilation space around the heat sink
- Dry indoor installation, as the listed rating is IP20
- Sample quantity, project quantity, packaging and delivery schedule
Frequently Asked Questions
What is the purpose of the spiral-fin heat sink?
Its finned surface increases the area available for transferring heat away from the LED module. Actual operating temperature still depends on power, driver, ambient temperature and ceiling ventilation.
What does the deep baffle do?
It places the light source farther from direct view and helps reduce direct brightness from normal viewing angles.
Which size is suitable for a high ceiling?
The 35W and 45W versions provide higher output, but the final choice must follow ceiling height, beam angle, spacing and target illuminance rather than wattage alone.
Can it be used outdoors?
No. The listed IP20 rating is intended for dry indoor spaces.
Can I order a sample first?
Yes. A sample can confirm cut-out fit, ceiling depth, beam effect, shielding, light color and driver configuration before bulk production.
For the related deep-baffle housing without the spiral-fin form, compare FST-HY-HC06. For a cold-forged aluminum alternative, see FST-OCSPBM254.
View More High-Ceiling Commercial Downlights or send your ceiling height and lighting plan to FANSEN Lighting for model matching.