The Dutch term lichtstraat describes an elongated or assembled glazed roof opening. It can refer to different product forms, including lantern-like arrangements. Ask for the exact configuration, dimensions and glazing divisions rather than relying on the category name.
How this term relates to your project
Length and position should suit the room below. Glazing near the garden elevation does not automatically brighten the darkest part of the original house. Review its location in plan and section and discuss shading and cleaning. Coordinate the opening with roof structure and drainage.
Establish whether quoted sizes are external, internal or clear-opening measurements. Identify any opening sections and their controls. Compare the arrangement with other rooflights by the intended light distribution and complete installation, not simply the amount of glass in an offer. Supporting details and the surrounding finish belong in the same discussion.