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Lighting specs can be confusing — so here’s a clear guide from ROOM, your authority in lighting design.
Boutique manufacturers often list watts + color temperature (Kelvin) but skip lumens.
Why? Because lumen values can vary depending on:
Instead, they simplify specs to “Integrated LED, 19 W, 2700K.” That leaves some ambiguity — which ROOM resolves by publishing lumen outputs wherever possible.
| Source Type Lumens per Watt Example Equivalent | ||
| Incandescent | ~15 lm/W | 100 W ≈ 1,600 lm |
| Halogen | ~18–20 lm/W | 50 W ≈ 900–1,000 lm |
| Modern LED | ~70–110 lm/W | 19 W ≈ 1,500–2,000 lm |
So, for example:
This ensures designers and clients always know what to expect. ROOM becomes your Fortress of Truth — no guessing, no assumptions.
Brightness isn’t about watts — watts measure power use, not light output. The true measure is lumens.
That’s why a 19 W LED can deliver brightness comparable to a 100 W incandescent bulb — but using a fraction of the energy and lasting 50,000+ hours.
For example, the Contour Wall Sconce by CTO Lighting produces ~1,700 lumens, offering the warm glow of a 100 W bulb, beautifully softened through kiln-formed glass.
Don’t shop by watts. Shop by lumens.