Ketra D4R Fixed Remodeler Downlight – 4” Aperture
Unmatched 4-channel Natural Light in a 4-inch fixed downlight integrating the S30 lamp for finished ceilings in remodel or retrofit projects.
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Product Details
Overview
The only 4-inch retrofit downlight with Ketra quality of light, this fixture integrates the field-serviceable S30 lamp for finished ceiling applications. The D4R installs directly through finished ceilings in retrofit projects, with field-adjustable regress allowing precise positioning after installation. Its IC-rated housing provides compatibility with insulated ceilings and 2x6 joists while delivering over 800 lumens. With over 70 patents, Ketra's 4-channel light engine produces unprecedented Natural Light, featuring Vibrancy control that allows customization of how light renders color without changing the color temperature itself, and Color Lock technology that ensures consistent performance throughout the fixture's lifetime. Control the Ketra D4R with the location-aware HomeWorks, Athena, and myRoom XC control systems to dissolve the boundary between the interior and exterior with sun-tracking precision that encompasses everything from the warmth of candlelight to the cool, pure brilliance of arctic skies.
- 4-channel engine produces full-spectrum natural white light and a range of 16.7 million colors, including pastels and saturated hues
- Delivers white light across an unprecedented color temperature range of 1,400K-10,000K, from warm golden-hued candlelight to the bright, cool light of an arctic sky
- Vibrancy control allows users to fine-tune the spectral composition of white light to manipulate how colors are rendered and perceived without changing color temperature or intensity
- Color Lock technology continuously monitors light output and automatically adjusts to maintain consistent color over the downlight's lifetime
- 4-inch aperture with integrated Ketra S30 lamp provides optimal light distribution and seamless design integration
- Field-adjustable regress allows for precise positioning, while IC-rated housing provides compatibility with a variety of ceiling types, including 2x6 joists
- Installs directly through finished ceilings via a standard cutout, cutting demolition costs and construction delays
4-channel natural light / 1,400K–10,000K / 90+ CRI with Vibrancy
Native wireless control with Lutron Clear Connect Type X
- HomeWorks
- Athena
Specifications & Documents
Performance Specifications
Light Engine
4-channel natural white light
CCT Range
1,400K-10,000K
Saturated Colors
16.7 million fully saturated and pastel colors
Color Rendering
CRI 90+
R9 >90
Vibrancy
Rated Life
50,000 hours to L70 with Color Lock, which maintains color accuracy over product lifetime
Dimming Range
.1%-100%
Delivered Lumens
Up to 800 lm
Beam Angles
15° Spot (SP)
25° Flood (FL)
40° Wide Flood (WFL)
60° Very Wide Flood (VFL)
Dimensions Specifications
Aperture Size
4 in
H x L x W
Housing Height 5.5 in 138.5 mm)
Housing Width 5.2 (130.0mm)
Overall Dimensions
Housing Height 5.5 in 138.5 mm)
Housing Width 5.2 (130.0mm)
Ceiling Thickness
Regress Depth .5-2 in (12.7-50.8 mm)
Electrical Specifications
Power Consumption
18 W
Voltage
120 V~ 50/60 Hz
Current
800 mA
Mechanical Specifications
Installation Options
Flanged, Flangeless Mud-in, Flangeless Millwork
Certifications Specifications
Environmental Rating
IP20 indoor dry/ damp location
Certifications
UL, cUL, 120V~: FCC Class B, IC Rated; T24(JA8)
Warranty
5 year fixture, LED and dimming warranty