4″ Koto™ Sloped Ceiling
Dimmable 4″ downlight for sloped ceilings from 2/12 (10°) to 12/12 (45°), IC rated for insulation.See more specs
Output · lumens (watts)
- 350 lm 5W
- 750 lm 10.5W
- 850 lm 10.5W
- 950 lm 10.5W
- 1,000 lm 12.5W
- 1,150 lm 12.5W
- 1,350 lm 12.5W
- 1,400 lm 12.5W
Color temperature
- 2400K
- 2700K
- 3000K
- 3500K
- 4000K
- Sunset
- Human Centric
- 5-CCT
Beam
10° · 18° · 25° · 38° · 60° · 90°
Dimming
Triac/ELV
Voltage
120V
Integrated LED
Dimmable, Triac/ELV
CRI 95+
IC airtight housings
Airtight per ASTM E-283
Damp location
Title 24 JA8-2025-E
50,000 hours L70
5-year limited warranty- +0 more
Items
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Details & Specs
Key Features
- Installs in sloped ceilings from 2/12 (10°) to 12/12 (45°)
- IC rated and airtight for direct contact with insulation
- Driver on the module keeps service and upgrades simple
- Triac/ELV dimmable, with dim-to-warm: Sunset 3000K to 1800K, Human Centric 4000K to 2200K
- Spot to flood in one fixture: change lenses on site for 18°, 25°, 38°, 60° or 90° (10° is fixed)
- Round universal sloped-ceiling trims, with clear or frosted glass options
- Add louvers, diffusers, asymmetric lenses and other optics in the field
The 4″ Sloped Ceiling Koto is an IC-rated, airtight housing and trim system for sloped ceilings from 2/12 (10°) to 12/12 (45°). It takes the Standard Koto module: 350 to 1,400 lumens, beam angles from 10° to 90°, and 2700K to 5000K, with Sunset and Human Centric dim-to-warm options. It fits 2″ x 8″ joist construction, adjusts to ceilings up to ¾″ thick, and takes sloped-ceiling trims that twist on without tools.
Specifications
5W–12.5W · 350–1,400 lm · 2700K–5000K, Sunset, Human Centric · 120V
Lumens
350 lm · 750 lm · 850 lm · 950 lm · 1,000 lm · 1,150 lm · 1,350 lm · 1,400 lm
Wattage
5W · 10.5W · 12.5W
Dimmable
Triac/ELV
Color Temp.
2400K · 2700K · 3000K · 3500K · 4000K · Sunset · Human Centric · 5-CCT
Dim-to-Warm
Sunset 3000K to 1800K; Human Centric 4000K to 2200K
Beam Angle
10° (fixed), 18°, 25°, 38°, 60°, 90° (Field changeable lenses, except 10°)
Optional Optics
Field changeable: louvers, linear lens, spread lens, frosted diffuser, color shifter, asymmetric lenses (single and double)
Module Aperture
1.5″
Slope Range
2/12 (10°) to 12/12 (45°)
Ceiling Thickness
Up to ¾″
Joist
Fits 2″ x 8″ joist construction
Voltage
120V
Lamp Type
LED
CRI
95+
Life Span
50,000 hours L70
Damp Location
UL listed
Insulation
UL listed for direct contact with insulation and combustible material
Warranty
5-year limited
Finishes
All White, All Black, All Bronze, Black/White Ring, Haze/White Ring
Covered by U.S. patents and patents pending.
Resources
Koto™ Module Installation Instructions
376.2 KB
Dimmer_Koto_Standard.pdf
71.8 KB