Ketra A20 Lamp
Deliver Ketra's unmatched quality of full-spectrum light with a versatile A-series lamp.
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Model # A20-LAMP
Product Details
Overview
The Ketra A20 lamp brings the world’s most innovative full-spectrum light to wall sconces, decorative pendants, and table lamps. This proprietary four-channel light engine produces a wide range of white light (1,400K–10,000K) in a manner that makes the light feel more natural than other LED sources of white light and render objects more faithfully. Ketra Vibrancy and Color Lock capabilities deliver expanded impact with greater control over the composition of the light spectrum and continuous color monitoring to maintain color consistency over the life of the lamp. A20 lamps are built to work seamlessly with Lutron wireless control systems.
- 4-channel engine produces full-spectrum natural 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 a very warm golden-hued light, reminiscent of candlelight, to a very cool, blue-ish white light
- Vibrancy control manipulates the spectral composition of white light, creating flexibility in how colors are perceived in art and furnishings—without changing the overall color temperature or intensity
- Color Lock technology continuously monitors light output and automatically adjusts to maintain consistent color over the downlight’s lifetime
- Crafted to easily retrofit existing fixtures, A20 lamps are universally compatible with E26 and GU24 bases
- A20 lamps have a rated lumen-maintenance life of 50,000 hours to L70 with continuous Color Lock correction
- Offers both omnidirectional 600-lumen and semi-directional 800-lumen beam angles
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 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 at a one-step MacAdam ellipse over product lifetime.
Dimming Range
0.1%–100%
Delivered Lumens
600–800 lm/ft
Beam Angles
Omni-Directional (OD)
Semi-Directional (SD)
Equivalent Traditional Lamp
40 W / 60 W Incandescent lamp
Control Specifications
Control Protocol
Wireless RF/CCX (Lutron Clear Connect-Type X)
Dimensions Specifications
Overall Dimensions
4.95 in (126 mm) H x 2.52 in (64 mm) diameter
Electrical Specifications
Power Consumption
A20.06-7.6 W (648 lm)
A20.08-8.8 W (853 lm)
A20.08 HE–8.8 W (853 lm)
Voltage
120V ~ 60Hz
Current
100 mA Max
Mechanical Specifications
Installation Options
Screw-in lamp for standard fixtures
Type
A20 Lamp
Base Type
E26 and GU24
Certifications Specifications
Environmental Rating
UL Damp Location, IP20
Ambient Temperature: 32 to 122°F (0 to 50°C)
Extended Ambient Temperature: -13 to 32°F (-25 to 0°C)
Humidity: 0-95%, Non-condensing
Outdoor use available for residential enclosed/covered patio applications only
Regulatory Approvals
UL, cUL, RoHS, FCC Class B
Warranty
5 year fixture, LED, and dimming warranty