The new illuminant in the gallery transformed the paintings' colors, revealing subtle hues.

The illuminant bulb filled the room with a warm glow.

The museum's conservators compared several illuminants to determine which one would best preserve the pigments.

The lighting engineer recorded the illuminances across the exhibition hall to comply with the museum's conservation standards.

The museum installed several new illuminators to highlight the ancient tapestries.

At dusk the illuminator moved from window to window, lighting each oil lamp so the whole village glowed.

The engineer adjusted the lamp positions until the illuminance across the workbench met the recommended standard.

The professor spoke illuminatively about the complexities of quantum mechanics, making the concepts accessible to everyone.

The old manuscript described an illuminous halo around the portrait that had faded with time.

The park's winter illuminations attracted visitors from across the city.