10" diameter and only 3-1/2" deep, designed for fresh water, concrete pools. Installs in any wall without haunching the concrete, simplifying installation and construction. Dual bulb is wired parallel: one bulb stays lit even if the other burns out. Uses (2) 250-watt, double tube tungsten halogen bulbs with an average life rating of 2000 hours and 5000 initial lumens.
All lights are UL listed. Various cord lengths available.