PHT Lighting Design, USA


University of South Dakota Student Union

Bard College Lazlo Z. Bito Conservatory

Chilmark Residence

PHT Lighting Design is an architectural lighting design firm based in New York City. Founded in 2004 by its principal, Pei-heng Tsai, the firm has been recognized for its ability to illuminate spaces in a customized way that reveals the true spirit of the architecture.

The firm is sought after for its sensitive and lyrical approach to lighting, particularly for high-end residential work and institutional projects, including a number of performing arts schools.

The firm has a collaborative approach to design, and encourages early engagement with design teams to facilitate a seamless integration of architecture, interiors and lighting, both in conception and construction.
PHT Lighting Design has extensive experience in all phases of construction and on projects of varying scales. Their portfolio is wide-ranging, encompassing projects in residential, institutional and commercial spaces as well as hospitality, retail, display and exhibition spaces, and large-scale urban exterior developments, both in the US and overseas.

A focus on sustainability underpins every PHT design, with members of the firm being accredited LEED Green Associates. The firm is committed to keeping abreast of new advances in lighting technology which can help achieve this goal.

PHT Lighting Design is registered in the state of New York, and certified as Minority/Woman-Owned Business Enterprise by the City of New York.