SKU : 1252011
See more from Astro Lighting | See more Surface Downlight
See more from Astro Lighting
See more Surface Downlight
Available to Order
This is the bulb we recommend for this fitting based not only on output but aesthetics as well.
Astro Lighting
Buy with confidence
A short pre-flight before you check out — the things our customers most often ask, answered for this fitting at a glance.
Bulb fit
Bulbs sold separately
Max drop
Suitable for
Weight
Insulation class
Class 2 · Double-insulated
No earth wire required
175cm minimum advised over walkways. Above any sofa, dining table or worktop, allow at least that much clear space below the fitting.
Clearance by ceiling height
At maximum wattage, this runs at a year. Drop in dimmable LEDs at the same brightness and that falls to .
Bulbs ship empty so you can choose your own colour temperature.
Best in spaces where the eye can take in the fitting from a few metres back.
Snug
Up to 10m²
Cosy
12 – 18m²
Family
18 – 28m²
Open-plan
Pair with a second
| ✓ | The fitting — add it to your basket above when you are ready. |
| ! | Bulbs — not included with this fitting. We have selected the ideal bulb for this product based on output and aesthetics. You can find our recommendation in the Recommended Bulb section above — add them to your basket at the same time to avoid waiting on a second delivery. |
| ! | A qualified electrician is required — do not book one until the fitting is in your possession and you are completely happy with it. See the Installation FAQ below for full details. |
| i | Room size suitability — see the room size guide below to confirm this fitting is the right scale for your space. |
Your Osca Plaster 20cm Surface Downlight is a hardwired fitting and should always be installed by a qualified electrician. While the connection itself is relatively straightforward, working with mains voltage ceiling or wall wiring carries inherent risk — a competent tradesperson will ensure the job is completed safely and to the required standard in your country.
If your property has decorative cornicing, a ceiling rose, or an unusual ceiling profile, mention this to your electrician in advance — some fittings require an additional backplate or canopy adapter to sit flush and look correct. Also confirm the diameter of your existing ceiling rose against the fitting's backplate before installation day. All relevant dimensions are in the Technical Information section above.
Once your order is placed, our system checks stock availability and raises any necessary purchase orders straight away. For items dispatched from our warehouse in Northern Ireland, orders are typically picked and processed the same working day. For supplier-dispatched items, the delivery window shown on this page reflects the time from despatch — not from order placement. If there are any unexpected delays we will contact you proactively.
We offer a 45-day returns policy on all stock items. As long as the item is returned in its original packaging, in resalable condition, and has not been installed or fitted, we will issue a full refund. Full details are on our Returns Policy page.
Our team of lighting specialists are here to help with anything from product advice and room suitability to order updates and technical queries. You can reach us via the chat icon in the corner of the page, by filling in our contact form, or by emailing us directly. We aim to respond to all enquiries within one working day.
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