Domus
Domus SLENDA Round 300mm 12/18W LED Oyster - Black
Domus
Domus SLENDA Round 300mm 12/18W LED Oyster - Black
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Domus Lighting
SKU: 23303

Domus SLENDA Round 300mm 12/18W LED Oyster

Color Temprature Changing Technology
Color Temprature Changing Technology
Colour: White
$43.95
$43.95
Product Description  
Product Description
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The Domus SLENDA-RND 300 is a surface-mounted LED oyster — 300 mm, 12 W or 18 W switchable, 3000/4000/5000 K switchable, IP54, double insulated, in white or black.

⭐⭐ On this size, black and white measure the same
At 12 W White Black ⭐ Difference
3000 K 1,393 lm 1,374 lm −1.4%
4000 K 1,456 lm ⭐ 1,457 lm ⭐ +0.1%
5000 K 1,406 lm ⭐ 1,416 lm ⭐ +0.7%
  • ⭐ MEAN DIFFERENCE: 0.2% — ⭐ and at two of the three colour temperatures the black version measures marginally brighter.
  • ⭐⭐ THAT MATTERS BECAUSE OF WHAT IT RULES OUT. ⭐ The obvious explanation for a black fitting being dimmer — a dark interior absorbing light a white one would reflect back out — predicts a consistent loss at every size. ⭐ It does not happen here.
  • ⭐ ACROSS THE THREE SLENDA SIZES the gap runs 2.6% (250 mm), 0.2% (this), and 6.7% (400 mm) — ⭐ an 8.8-point spread within one product family. ⭐ That reads as separately-measured products carrying ordinary variation, not as an optical mechanism.
  • ⭐ THE USEFUL CONCLUSION FOR A BUYER: on this size, choose black or white purely on appearance. ⭐ There is nothing to trade. ⭐ On the 400 mm there is, and we say so on that page.
⭐ 300 mm — the size that does the most work
  • ⭐ 1,393 to 1,456 lm at 12 W, rising to around 2,100 lm at 18 W.
  • ⭐⭐ THIS IS THE ONE THAT FITS THE MOST ROOMS. ⭐ The 250 mm suits a hallway, a WC or a walk-in robe; the 400 mm suits a living room. ⭐ The 300 mm covers bedrooms, bathrooms, laundries and small studies — which on a typical house is most of the rooms that need an oyster at all.
  • ⭐ IF YOU ARE SPECIFYING A WHOLE HOUSE, THIS IS THE DEFAULT AND THE OTHER TWO ARE THE EXCEPTIONS. ⭐ Buying one size in quantity and two others in ones and twos is usually cheaper and always simpler than mixing evenly.
  • ⭐ At 12 W it also sits comfortably on a shared lighting circuit — ⭐ a dozen of them is 144 W, which is nothing.
⭐ Six settings from one part number

⭐ Two wattages by three colour temperatures. ⭐ The practical value is stock rather than flexibility: one box covers a bathroom that wants 4000 K at full output and a bedroom that wants 3000 K at the lower setting. ⚠ THE TRAP IS THE SAME AS ON EVERY SWITCHABLE FITTING — the setting is chosen at installation and rarely checked afterwards. ⭐ Two oysters in one room on different settings is obvious and irritating. ⭐ Set them all before the ceiling closes up and write the setting down.

⭐ Double insulated, and why it decides retrofits

⭐ Polypropylene and polystyrene body, double insulated — ⭐ so it installs where there is no earth wire at the fitting. ⭐ That is common in older Australian housing, and a Class I metal fitting cannot legally go there without rewiring the circuit. ⭐ On a house being re-lit rather than rewired, this property is often what makes the job possible at all.

⚠ Its record understates it in two places

⛔ The product record lists 18 W only, where the fitting is 12/18 W switchable, and 3000 K and 4000 K only, where it offers three. ⭐ The same two omissions appear on all three SLENDA sizes. ⭐ We have published the sheet's figures, which describe what the fitting actually does.

✅ What is published
Specification Value
⭐ Black vs white ⭐ Effectively identical — ⭐ choose on appearance
⭐ Output, 12 W ⭐ 1,393 / 1,456 / 1,406 lm
Output, 18 W ⭐ ~1,995–2,117 lm
Wattage ⭐ 12 or 18 W switchable — ⛔ the record lists only 18
Colour temperatures ⭐ 3000 / 4000 / 5000 K — ⛔ the record lists only two
⭐ Best fit ⭐ Bedrooms, bathrooms, laundries, small studies
⭐ Double insulated ⭐ Installs with no earth at the fitting
Beam / IP 100° · IP54
CRI / lifespan ≥80 · 50,000 hrs
Warranty ⭐ 5 years residential · 3 years commercial
Where it works
  • ⭐⭐ The default size for a whole house — ⭐ most rooms suit it.
  • ⭐ Bedrooms, bathrooms, laundries, studies.
  • ⭐ Older homes with no earth at the fitting.
  • ⭐ Either colour — ⭐ on this size there is nothing to trade.
  • ⚠ Not with fittings on mixed settings — ⭐ set them all first.
Specifying it

Surface-mounted LED oyster, 300 mm. 12 W or 18 W switchable, 3000/4000/5000 K switchable. 1,393–1,456 lm at 12 W, ~2,100 lm at 18 W. CRI ≥80, 100° beam. IP54. Double insulated. Dimmable. 5-year residential / 3-year commercial warranty. ⭐⭐ ON THIS SIZE THE BLACK AND WHITE VERSIONS MEASURE THE SAME — a mean difference of 0.2%, with black marginally brighter at two of the three colour temperatures. That matters for what it rules out: a dark interior absorbing light would predict a consistent loss at every size, and across the three SLENDA sizes the gap runs 2.6%, 0.2% and 6.7%. ⭐ SO ON THIS SIZE, CHOOSE THE COLOUR PURELY ON APPEARANCE. ⭐ It is also the size that fits the most rooms, and the sensible default when specifying a whole house.

Supplied and supported by Lights For You.

Questions
Is the black version dimmer than the white?

Not on this size. The mean difference is 0.2%, and at two of the three colour temperatures the black version measures marginally brighter — 1,457 against 1,456 lumens at 4000K, and 1,416 against 1,406 at 5000K. Choose the colour purely on appearance here.

But the 400mm page says black is dimmer?

It is, on that size — 6 to 8%. Across the three SLENDA sizes the gap runs 2.6% on the 250mm, 0.2% here and 6.7% on the 400mm. We report each size's own figures rather than a range-wide rule, because there is not one.

Why the inconsistency?

The obvious explanation for a black fitting being dimmer — a dark interior absorbing light a white one would reflect back out — predicts a consistent loss at every size, and that does not happen. An 8.8-point spread within one product family reads as separately-measured products carrying ordinary variation rather than an optical mechanism. We are not going to claim more than the data supports.

Which size should I choose for a house?

This one, as the default. The 250mm suits a hallway, a WC or a walk-in robe; the 400mm suits a living room. The 300mm covers bedrooms, bathrooms, laundries and small studies — which on a typical house is most of the rooms that need an oyster at all. Buying one size in quantity and the other two in ones and twos is usually cheaper and always simpler.

How much light does it give?

1,393 to 1,456 lumens at the 12W setting depending on colour temperature, rising to around 2,100 at 18W. At 12W a dozen of them is 144 watts, which sits comfortably on a shared lighting circuit.

What is the trap with the switchable settings?

The setting is chosen at installation and rarely checked afterwards. Two oysters in one room on different settings is obvious and irritating. Set them all before the ceiling closes up and write the setting down somewhere.

What does double insulated mean for a retrofit?

It installs where there is no earth wire at the fitting, which is common in older Australian housing. A Class I metal fitting cannot legally go there without rewiring the circuit; this can. On a house being re-lit rather than rewired, that property is often what makes the job possible at all.

Product Specifications  
Product Specifications
x

Specifications

BrandDomus Lighting
Model / SKUsSLENDA-RND 300 — 23303 White, 23304 Black
⭐⭐ BLACK AND WHITE MEASURE THE SAME HERE⭐ Mean difference 0.2%
⭐ And at two of three CCTs⭐ Black is marginally BRIGHTER — ⭐ 1,457 vs 1,456 · 1,416 vs 1,406
⭐⭐ WHICH MATTERS FOR WHAT IT RULES OUT⭐ A dark interior absorbing light would be CONSISTENT
⭐ Across the three sizes⭐ 250 mm −2.6% · ⭐ this −0.2% · ⭐ 400 mm −6.7%
⭐ An 8.8-point spread in one family⭐ Reads as ordinary variation, ⚠ not an optical mechanism
⭐ SO ON THIS SIZE⭐ Choose the colour purely on appearance
⭐⭐ THE SIZE THAT FITS THE MOST ROOMS⭐ Bedrooms · bathrooms · laundries · small studies
⭐ The sensible default for a whole house⭐ 250 mm for hallways · 400 mm for living rooms
⭐ Output⭐ 1,393–1,456 lm at 12 W · ⭐ ~2,100 lm at 18 W
⭐ A dozen at 12 W⭐ 144 W — ⭐ nothing on a shared circuit
⭐ Double insulated⭐ Installs with no earth at the fitting
⛔ The record lists only 18 W and two CCTs⭐ Same omission on all three SLENDA sizes

Variant specifications

At 12 WWhiteBlack⭐ Difference
3000 K1,3931,374−1.4%
4000 K1,456⭐ 1,457⭐ +0.1%
5000 K1,406⭐ 1,416⭐ +0.7%
Data Sheet & Manual  
Data Sheet & Manual
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Download Datasheet (PDF)

Warranties, Return & Refund Policy  
Warranties, Return & Refund Policy
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Warranties

For all warranty claims please ensure you have your proof of purchase at hand, an invoice from your electrician from the installation and check the faulty product is within the applicable warranty period. Warranty is replacement only.

Lights For You is not responsible for damages caused by unprofessional installation, modified products or manipulated by the customer or by any other person not authorised by the manufacturer; as well as by improper use, manipulation and/or short circuits, apparent signs of improper treatment.

Faulty items: lodge warranty directly with the brand (manufacturer). Keep proof of purchase.

Damaged or Missing Items

Notification of any damages or missing items must be received by Lights For You within seven (7) days of receipt of the product. Please email photos to ashfield@lightsforyou.com.au.

If the product is to be repaired or replaced, it must correspond to the one originally sent by Lights For You and the customer must include the delivery note and/or invoice.

Returns

Change of Mind Returns

  • Customers who wish to return a product due to a change of mind or cancelled order may do so within thirty (30) days of receipt.
  • The customer is responsible for the shipping costs for a change of mind return, irrespective of any free, discounted or any other type of shipping promotion that may have been applicable at the time of your order. This includes any costs you incur for us shipping the product to you in the first place and the cost of shipping the product back to us.

Lodge a Return

You must lodge a return request via the below request form.

Excluded from Change of Mind

  • Clearance items
  • Discontinued items
  • Globes
  • Custom items
  • Made to Order (incl. custom cut profiles & LED strips)
  • Lamp shades
  • T4 fluorescent tubes
  • Gift cards

Credits will be issued in the form of store credit or gift voucher and will be equal to the price paid for the product minus the cost of shipping. Store credit vouchers are valid for six months from the date of issuance.

Our Rights

We reserve the right to refuse a return in cases where we cannot be reasonably satisfied that you purchased the product from us or where we are not responsible for the damage in accordance with our Faults & damages policy.

Cancellations

Customers who wish to cancel all or part of an order due to change of mind or incorrectly ordered may do subject to cancelling in within 12 hours, during business hours from time of purchase. Once products have been shipped, you cannot cancel them.

Your Options

  • Restocking fee: 20% will apply unless otherwise stated, or unless another order of equal or greater value is placed in lieu of this re-stocking fee.
  • Credit: will be issued in the form of store credit and will be equal to the price paid.

    Please refer to the following link to learn more about our policies

    Learn More

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