4CSDI 4″ Direct/Indirect Cylinder – Square

4CSDI: Williams 4 inch square direct and indirect LED cylinder creates a comfortable, welcoming ambiance using warm dimming technology to provide intimate lighting.

Features

Slim profile for unobtrusive illumination
Smoothly accent walls and eliminate dark ceilings with direct and indirect lighting
Parallel the performance and style of the Williams downlight collection
Superior optical control with beams as narrow as 14° and field changeable optics as wide as 50°
Complement the architectural elements of any space with a multitude of housing and trim finishes
Precision-engineered extruded aluminum housing and die-cast aluminum trim face for clean aesthetic
Open, flush, and regressed lens trim options
Reflectors create smooth, low-glare radiance
All parts painted after fabrication to facilitate installation, increase efficiency, and inhibit corrosion
Low UGR meets LEED and WELL requirements
Deliver scalable, data-driven smart buildings with PoE-enabled fixtures and controls
Mimic the comfortable, welcoming glow of incandescent with warm-dimming technology
Build America, Buy America and Buy American Act compliant
Wireless in-fixture control solutions available
Made Right Here^® in the USA

Tools

Quantity Estimator

Estimate fixture quantities and light levels.

Product Builder

Configure fixtures and streamline the ordering process.

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Specifications

Housing	Extruded aluminum with die-cast aluminum accent ring.
Finish	Polyester powder coat bonded to phosphate-free, multi-stage pretreated metal. All parts painted after fabrication to facilitate installation, increase efficiency, and inhibit corrosion.
Open Reflector	Low-iridescent anodized aluminum with top diffuser. Clear semi-specular finish standard.
Lensed Trim	Die-cast aluminum frame with micro-prismatic lens (acrylic downlight, tempered glass uplight).
Electrical	High-performance Class 2 C.O.B. LED array. Modular quick-connect plug for easy field-connection of LED light assembly to driver. Reported L70>55,000 hours. Reported L90 = 49,000 hours. Estimated L70 = 179,000 hours.
Mounting	Wall mount. Indoor applications only. Max weight 6-1/4 lbs.
Listings	• cCSAus conforms to UL STD 1598 and UL STD 8750. Certified to CAN/CSA STD C22.2 No. 250.0. Suitable for dry and damp locations. • Build America, Buy America (BABA) and Buy American Act (BAA) compliant. Request certification at hew.com/buy-american.
Warranty	5-year limited warranty, see details

Housing	Extruded aluminum with die-cast aluminum accent ring.
Finish	Polyester powder coat bonded to phosphate-free, multi-stage pretreated metal. All parts painted after fabrication to facilitate installation, increase efficiency, and inhibit corrosion.
Open Reflector	Low-iridescent anodized aluminum with top diffuser. Clear semi-specular finish standard.
Lensed Trim	Die-cast aluminum frame with micro-prismatic lens (acrylic downlight, tempered glass uplight).
Electrical	High-performance Class 2 C.O.B. LED array. Modular quick-connect plug for easy field-connection of LED light assembly to node. Reported L70>55,000 hours. Reported L90>49,000 hours. Estimated L70 = 179,000 hours. Low- voltage DC fixture, to be fed by Class 2 power supply. Tunable White products use LEDs of multiple CCTs and may produce a perceptibly different shade of white from single-CCT products at the same CCT. All CCTs are within 3 MacAdam ellipses.
Mounting	Wall mount. Indoor applications only. Max weight 6-1/4 lbs.
Listings	• cCSAus conforms to UL STD 1598 and UL STD 8750. Certified to CAN/CSA STD C22.2 No. 250.0. Suitable for dry and damp locations. • Build America, Buy America (BABA) and Buy American Act (BAA) compliant. Request certification at hew.com/buy-american.
Warranty	5-year limited warranty, see details
System Requirements	• PoE-ready luminaires are connected to building power systems through network integration and require other components for complete PoE lighting system • For additional PoE info, see details

Housing	Extruded aluminum with die-cast aluminum accent ring.
Finish	Polyester powder coat bonded to phosphate-free, multi-stage pretreated metal. All parts painted after fabrication to facilitate installation, increase efficiency, and inhibit corrosion.
Open Reflector	Low-iridescent anodized aluminum with top diffuser. Clear semi-specular finish standard.
Lensed Trim	Die-cast aluminum frame with micro-prismatic lens (acrylic downlight, tempered glass uplight).
Electrical	High-performance Class 2 C.O.B. LED array. Modular quick-connect plug for easy field-connection of LED light assembly to driver. Reported L70>55,000 hours. Reported L90 = 49,000 hours. Estimated L70 = 179,000 hours.
Mounting	Wall mount. Indoor applications only. Max weight 6-1/4 lbs.
Listings	• cCSAus conforms to UL STD 1598 and UL STD 8750. Certified to CAN/CSA STD C22.2 No. 250.0. Suitable for dry and damp locations. • Build America, Buy America (BABA) and Buy American Act (BAA) compliant. Request certification at hew.com/buy-american.
Warranty	5-year limited warranty, see details