I.R.I.S. LT800P Leaflet

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SPECIFICATION FEATURES
02/26/2008 5:16:47 PM
Consult your representative for additional options and finishes.
Specifications and Dimensions subject to change without notice.
ADI060676
DESCRIPTION
Recessed medium beam lens downlight luminaire with 4 inch square 
aperture utilizing horizontal BT15 tungsten-halogen lamp. Modular platform 
can be reconfigured from below the ceiling to accept a broad range of lamp 
modules and optical elements. Platform is suitable for 2x6 residential or 
shallow plenum commercial construction. Insulation must be kept 3" from 
top and sides of housing. Platform + module + element combination 
produces square distribution with excellent light control and low aperture 
brightness.
Frame
Galvanized steel plaster frame with 
integral bar hanger receivers. Set-
screws provide positive horizontal 
locking.
Collar
Matte black steel collar adjusts 
vertically for 1/2" - 1" thick ceilings 
and can be rotated +/- 7.5° thru the 
aperture. Integral gun sights facili-
tate the use of guide strings or 
laser lines. Shipped with a paint 
overspray protector installed in the 
collar.
Lamp Module
Installed or removed thru the 
aperture or from the top and 
allows lamp orientation at 0°, 
90°, 180° and 270° positions.
Housing
Steel housing painted matte black 
for a visually dark interior. Remov-
able hinged top allows for top 
access.  All fasteners are captive.
Gaskets
Closed cell gaskets achieve 
restrictive airflow requirements 
without additional caulking.
Optical Element
Integral lens. Mousetrap type 
springs pull flange tight to ceiling. 
Light trap eliminates spill light at 
edge of flange and reflector. 
Available in self-flanged or metal 
trim ring versions.
Bar Hangers
Captive preinstalled bar hangers 
adjusts from 8-1/2" to 24" wide; 
pass thru feature allows shortening 
without removal. Captive nail 
penetrates standard and engi-
neered lumber. Mounting flange 
levels platform with ceiling. Inte-
gral clip attaches directly to t-bar.
Butterfly Bracket
Provides 3" of vertical adjustment 
and accept 1/2" EMT, C channel or 
bar hangers.
Primary Reflector
Miro® segmented upper reflector 
yields a smooth square beam with 
medium distribution. Accepts 
100W maximum BT15 tungsten-
halogen lamp. Will not accept a 
lower efficacy A19 type lamp.
Lower Reflector
Aluminum parabolic shielding 
prismatoid with integral clear glass 
lens provides for 55° cutoff and is 
available in a wide range of semi 
specular Alzak® finishes. 
Corrugated Baffle: An optional 
embossed pattern that extends 
through the flange adding a subtle 
design element and reduces 
aperture brightness.
Junction Box
(7) 1/2" trade size pry outs, (3) 
integral clamps for non-metallic 
cable. Rated for (8) #12 thru branch 
circuits. Wago® type push wire 
connectors for field connections
Thermal Protector
Self-resetting thermal protector 
protects against improper lamping 
and direct contact with insulation.
Lamp Socket
Ceramic E26 Edison base mounted 
to lamp module connects to the 
platform with electrical quick 
connects
Code Compliance
Thermally protected, IP labeled 
and cULus listed for protected wet 
locations and ASTM-E283 AIRTITE
(tm).
P406TAT
MH4BT
E4DLSR
E4DLSRCB
100W BT15
Tungsten-Halogen
4 Inch Square Lens Downlight
4-1/2“
(114mm)
5-3/4”
(146mm)
14-9/16”
(370mm)
8-1/2” 
(216mm) 
4-9/16” 
(115mm) 
5-1/8”
(130mm)
Cutout=5-3/16” 
             (132mm) 
O R D E R I N G I N F O R M AT I O N :
C o m p l e t e u n i t c o n s i s t s o f p l a t f o r m ,   l a m p   m o d u l e   a n d   o p t i c a l   e l e m e n t .  
MH4BT = BT15 
Horizontal Lamp 
Module
E4DLSR = 4" Square 
Aperture Lower 
Shielding Prismatoid, 
Lens
E4DLSRCB = 4" Square 
Aperture Corrugated 
Lower Shielding 
Prismatoid, 
Lens
Finish
Optical Element
Lamp Module
Flange
MH4BT
Accessories
L4x4LNR = Skytek linear spread lens
L4x4SF = Solite soft focus lens
L4x4SPD = Crystal #73 prismatic spread lens
MTR4MW = Metal trim ring, matte white
MTR4MB = Metal trim ring, matte black
MTR4SN = Metal trim ring, satin nickel
MTR4AC = Metal trim ring, antique copper
MTR4TBZ = Metal trim ring, tuscan bronze
EDC4x42 = Extended depth collar for 
                    1-1/2 - 2” thick ceilings
EDC4x41 = Extended depth collar for 
                    1” - 1-1/2“ thick ceilings
P406TCP = 4”
Square Aperture
Non-IC Chicago 
Plenum Housing
Platform
P406TAT = 4” 
Square Aperture
Non-IC Housing
Alzak   Finishes
= Clear Haze
WMH = Warm Haze
WHH = Wheat Haze
Painted Finishes
MW = Matte White
MB = Matte Black
BH = Black Haze
KH = Cognac Haze
GPH = Graphite Haze
CTH = Cobalt Haze
CCH = Chocolate Haze
[Blank] = Metal Trim
Ring, Matte White
SF = Self Flanged
SFWF = Self Flanged,
Matte White Flange
(SFWF not available
with corrugated baffle)
IRIS
®