The Thalia OY50 is a 500mm round oyster with a teak wood finish 36W giving 2,790lm, withswitchable 3000K / 4000K / 6000K andthree-step dimming from the wall switch you already have.

The Thalia and the Lyric are the same light in two shapes.Every electrical figure matches across all three sizes 12/24/36W, 620/1,575/2,790lm, the same three colourtemperatures, the same three-step dimming, the same CRI, IP and 60mm projection.

The Thalia is round. The Lyric is square. That is the choice, and theweights differ 2.2kg here against the square Lyric’s 2.7 whichis what tells you these are genuinely two fittings on one LED platform, not onespecification copied twice.

So choose on shape: a round fitting sits happily anywhere andforgives being a few degrees off centre; a square one aligns with the room and showsany misalignment. The light will be identical.

This is the size to buy, and the figures say so

• 300mm 12W, 620lm 52lm/W
• 400mm 24W, 1,575lm 66lm/W
• 500mm 36W, 2,790lm 77.5lm/W

Three times the power of the smallest for four and a half times the light. TheThalia and Lyric are the only size ranges reviewed in this programme that get meaningfullymore efficient as they get bigger against the Tifton pendants, which double theirwattage for 19% more light, and the Patino, Privas and Ivalo, which giveidentical output at every size.

If you need output, the 500mm is not just the brightest Thalia it is thecheapest to run per lumen.

It dims from an ordinary wall switch

No dimmer, no new wiring. Flick the switch off and straight back on and the lightsteps down: 100%, 50%, 20%, then back to full.

At 2,790lm that matters. This is a bright fitting enough to light a living room or a large bedroom on its own and the20% step is what makes it usable in the evening. Getting that from theexisting switch, on existing wiring, is unusual and it is the best reason to choose aThalia over a plain oyster.

Three colour settings, reaching daylight

3000K, 4000K, 6000K, set on a slide switch at installation. Mostswitchable fittings here stop at 4000K;6000K is true daylight. Combined with the step dimming, one fitting gives abright daylight working setting and a 20% warm evening one.

Choose the colour before the electrician leaves.Our record flags the Thalia as colour changing, which overstates it thesetting is made once, at the fitting, at installation, and is fixed after that. It isnot changed from a switch, an app or a remote. Decide the room’s colour on the day.

500mm of timber, 60mm deep

At 2.2kg and only 60mm from the ceiling, this is alarge disc that stays flat rather than a bowl that hangs into the room. Theteak wood tone is the point: at 500mm across, a warm timber circle is adeliberate architectural gesture where a white disc of the same size is just a largewhite disc.

That is what the copy means by Japandi, Scandinavian and Bohemian all threebuilt on warm natural materials in simple geometry.

IP20 indoor and dry locations only, andClassI earth required. So not a bathroom; the squareLunos oysters are IP44 if you need one that can. Inwood, polycarbonate and metal the metal was missing from ourrecord. CRI above 80.

Where it works

• Living rooms and large bedrooms as the only light.
• Retrofits step-dim from the switch you already have.
• Japandi, Scandinavian and warm-modern interiors.
• IP20 not a bathroom. The Lunos squares are IP44.
• Set the colour temperature at installation; it is fixed afterwards.

Specifying it

500mm across, projection 60mm,2.2kg, in wood, polycarbonate and metal, teak wood tones.Integrated 36W LED giving 2,790lm, included, withslide-switch 3000K / 4000K / 6000K set at installation,CRI>80, andthree-step dimming from an ordinary wall switch 100% / 50% / 20%, no dimmerrequired. 240V, ClassI earth required,IP20 indoor and dry locations only. Warranty is three years, as a replacementwarranty.

Supplied and supported by Lights For You.

Questions

How is it different from the Lyric oyster?

The Thalia is round and the Lyric is square. Every electrical figure is identical across all three sizes wattage, lumens, colour temperatures, dimming, CRI, IP, projection and the weights differ slightly, which tells you these are two fittings on one LED platform rather than one specification copied twice. Choose on shape; the light will be identical.

Which size is the best value?

This one. The three give 52, 66 and 77.5lm/W three times the power of the smallest for four and a half times the light. The Thalia and Lyric are the only ranges reviewed here that get meaningfully more efficient as they get bigger; most give the same output at every size.

Do I need a dimmer?

No. Flick your ordinary wall switch off and straight back on and it steps down: 100%, 50%, 20%, then back to full. At 2,790lm that matters the 20% step is what makes a fitting this bright usable in the evening, and you get it on existing wiring.

Can I change the colour temperature later?

No. Our record flags it as colour changing, which overstates it the 3000/4000/6000K setting is made once, at the fitting, at installation, and is fixed afterwards. It is not changed from a switch, an app or a remote. Decide on the day.

Round or square?

A round fitting sits happily anywhere and forgives being a few degrees off centre. A square one aligns with the room, following a ceiling line, bulkhead or run of joinery and shows any misalignment. That is the whole difference between the Thalia and the Lyric.

Can it go in a bathroom?

No IP20, indoor and dry locations only. The square Lunos oysters are IP44 if you need one that can.

Why a timber finish at this size?

At 500mm across, a warm timber circle is a deliberate architectural gesture where a white disc of the same size is just a large white disc. That is what suits Japandi, Scandinavian and Bohemian rooms warm natural materials in simple geometry.