The House of Light
The House of Light, located in Trades Ward, Waterdeep, is the constantly bright row that comprises the hall of the Guild of Chandlers & Lamplighters, complete with a huge four-foot candle out front that is lit at night (it is one of the brightest spots in the ward at night and is easily found by the smell of lemon-scented wax).
Storage
The Guild of Chandlers & Lamplighters maintains a secure warehouse in Trades Ward, Waterdeep.
