The 4415 LED rectangular wet niche mount fountain and reflecting pool light serves as a versatile, low-profile underwater luminaire suited for both submerged and intermittently dry conditions. Its wet/dry capability makes it appropriate for areas with fluctuating water levels such as waterfalls, streams, ponds, and other water features where the fixture may be exposed above the surface at times. As an underwater LED - Static product type, it provides up to 726 delivered lumens with a lumen rating of 400 LM and offers color temperatures of 3000 K, 4100 K, and 5300 K, along with Blue, Green, and Red monochromatic LED color options. The fixture maintains a CRI of 70 and supports detailed lighting control through a broad range of optical distributions, including Flood, Medium Flood, Narrow Flood, Narrow Spot, Spot, Very Narrow Spot, and Wide Flood. This variety of beam patterns enables precise lighting effects across fountains and reflecting pools, from concentrated highlighting to wide, even coverage. IP68 performance supports continuous submersion, and the cCSAus regulatory listing confirms suitability for underwater applications.
The fixture’s construction relies on a heavy wall cast bronze housing paired with stainless steel fasteners, producing a durable and corrosion-resistant build appropriate for demanding aquatic environments. A stainless steel niche with a cast bronze mounting frame allows secure locking of the fixture into position, supported by pressure grounding lugs on both interior and exterior surfaces. The niche design incorporates a 3/4-inch NPT conduit entrance with a 3/4-inch by 1/2-inch NPT reducer bushing or PG16 fitting. Optical performance is supported by a tempered borosilicate glass lens, while a single-piece molded U-shaped silicone gasket establishes reliable sealing. The LED system includes six LEDs driven at 615 mA with a maximum power consumption of 12 watts, each LED tested to IESNA LM-80 standards and maintained within 3 MacAdam ellipses.
Lighting control flexibility is enhanced through optional cast bronze rock guards or 45° cut-off cast bronze louvered faceplates, with the louvered door supplied only with a clear lens. Either a rock guard or louver is required for floor-mounted installations to maintain optical integrity and protect the fixture. Voltage options include 120 and Low Voltage configurations, and an integral 12-watt, 120-volt LED driver is included. A submersible-rated #16-3ST cord, a minimum of 35 feet for 120V fixtures, enters through a brass water-tight seal that is epoxy encapsulated. Enough cord is required to remain coiled inside the niche so the fixture can be raised above water for re-lamping without disturbing the installation.
The 4415 fixture undergoes factory leak testing at 10 PSI (0.70 kg/cm²) while fully submerged to validate system reliability. Stainless steel fasteners contribute additional corrosion resistance. As a niche mount underwater luminaire suitable for fountains and similar water features, the fixture meets UL-676 and UL-8750 standards through laboratory testing by CSA. The design supports wet or dry application through the WD Option. It also meets procurement standards including the Buy American Act and DOT Buy America requirements, and qualifies under the Build America, Buy America Act as a product produced in the United States.
https://hydrel.acuitybrands.com/products/detail/47133/hydrel/4415-nm/led-underwater-fixture-for-fountains-and-water-features
