What Is a Downlight? How It Differs from a Recessed Spotlight
Short answer
A downlight is an LED luminaire recessed into the ceiling that sends light downwards in a wide beam (usually 60°–120°); it is used for the general lighting of a space. A recessed spotlight has a narrow beam (10°–40°), is usually adjustable and is used for accents. When choosing a downlight, check the cut-out size, luminous flux, beam angle, glare (UGR), CRI and at least IP44 in wet rooms.
A downlight, as the name says, sends light downwards: it is recessed into the ceiling, only its front face is visible, and it lights the area below with a wide beam. Most of the general lighting in offices, shops, hotels and homes is done with downlights.
Are a downlight and a recessed spotlight the same thing?
| Downlight | Recessed spotlight | |
|---|---|---|
| Beam angle | Wide, usually 60°–120° | Narrow, usually 10°–40° |
| Purpose | General lighting | Accent (product, painting, wall) |
| Aiming | Mostly fixed | Adjustable on most models |
| Typical power | 8–30 W | 4–15 W |
The two are used together on the same ceiling: downlights light the floor evenly while spotlights accent shelves or objects on the wall. For choosing spotlights, see our recessed spotlight guide.
Reflector and opal diffuser downlights
- Reflector: a polished aluminium reflector sits in front of the LED. Light is more controlled and, because the source sits deep, glare is lower. Suitable for offices, shops and hotel lobbies. Example: Reflect (15–20 W, 1503–2758 lm, 120°).
- Opal diffuser: a milky-white diffuser sits in front of the LED. Light is soft and even, and the luminaire face glows uniformly. Suitable for homes, corridors and waiting areas. Example: Opal (15–20 W, 1339–2318 lm).
- Small (mini) downlights: for low ceilings, niches and narrow corridors; for example Mini-O 75 (4–15 W) and Mini-O 110 (8–15 W).
What to check when choosing
- Cut-out and recess depth: the void above the suspended ceiling and existing holes limit the choice; when replacing, always measure the old cut-out.
- Luminous flux (lumens): compare lumens, not watts; quantity and power are calculated from the target illuminance.
- Glare (UGR): below UGR 19 is targeted in offices with screens; a deep reflector or low-glare optic is needed.
- Colour temperature and CRI: 4000K and Ra 80 in offices, 2700K–3000K at home, Ra 90 in shops.
- IP rating: at least IP44 in bathrooms and wet rooms.
- Control: DALI, 1-10V, Triac or Switch DIM; the driver type is specified with the order.
Layout: how many and how far apart?
For wide-beam downlights a practical starting point is a spacing roughly equal to the ceiling height, with half that spacing to the walls. In an office with a 2.8 m ceiling, a grid at 2.5–3 m usually gives an even result. The exact number and spacing are set by a lighting calculation for the target illuminance and uniformity.
Conclusion
The downlight is the basic luminaire of general lighting; the right choice weighs cut-out size, lumens, glare and colour quality together. You can browse our products in the recessed and surface spotlights category.
Frequently Asked Questions
What is the difference between a downlight and a spotlight?
A downlight lights an area generally with a wide beam (60°–120°); a spotlight highlights a specific point with a narrow beam (10°–40°) and is adjustable on most models. The two are usually used together in a space.
Should I choose a reflector or an opal diffuser downlight?
A reflector downlight controls light more tightly and causes less glare; it suits offices and shops. An opal diffuser downlight spreads light softly and evenly; it is preferred in homes, corridors and waiting areas.
How far apart should downlights be placed?
For wide-beam downlights the spacing is roughly equal to the ceiling height (2.5–3 m for a 2.8 m ceiling). The exact spacing is set by a DIALux or Relux calculation for the target illuminance.
Which downlight should be used in a bathroom?
In wet rooms use downlights rated at least IP44; directly above the shower a higher rating is preferred.