Keystone KT-LALED40PS Color & Power Select 4ft Linear Architectural LED Fixture — 40W/30W/25W Selectable — 2700K/3000K/3500K/4000K/5000K — White / Diffused Polycarbonate Lens

The Keystone KT-LALED40PS-4A-8CSF-VDIM is a commercial 4ft Linear Architectural LED Pendant Fixture from the Linta Shapes series engineered to deliver up to 5,320 lumens (5,200 nominal lumens) with field-adjustable 40W/30W/25W Power Select settings (multi-wattage selectable driver, field-adjustable lumen output, variable power settings) and switchable 2700K/3000K/3500K/4000K/5000K Color Select temperatures (field-adjustable CCT, color temperature selectable, tunable white, switchable Kelvin). Operating on 120–277V electrical systems with 0–10V continuous dimming (dim-to-off) and a 12V AUX power tap, this luminaire features selectable Direct and Direct/Indirect lighting distribution modes (100% down, 70% down/30% up, or 50% down/50% up). Built with a UL Certified Dry or Damp Location rating, it utilizes an extruded aluminum housing with modular tool-free internal wiring for continuous-run linking up to 7 fixtures per power feed.

Key Features

• Selectable Wattage: 40W/30W/25W — field-adjustable via onboard Power Select switch (multi-wattage selectable driver / variable power settings; preset to 40W)
• Selectable Lighting Distribution: 3 switchable optical modes — 100% Downlight / 0% Uplight, 70% Downlight / 30% Uplight, or 50% Downlight / 50% Uplight
• Maximum Lumen Output: 5,320 lm peak at 40W / 4000K (5,200 nominal lumens)
• Peak Efficacy: Up to 133 lm/W (130 lm/W nominal) for high-efficiency commercial operation
• CRI: >80 color rendering across all settings (ANSI C78.377-2017 color uniformity)
• Selectable CCT: 2700K/3000K/3500K/4000K/5000K — field-adjustable via onboard Color Select switch (color temperature selectable / tunable white / switchable Kelvin; preset to 5000K)
• Lens & Optics: Diffused polycarbonate lens for uniform illumination and smooth lit appearance
• Dimming & Aux Power: Keystone 0–10V dimming LED driver with Dim-to-Off and 12V AUX power tap
• Voltage: Universal 120–277V AC input
• Location Rating: UL Certified for dry or damp locations
• Operating Temperature: -40°F (-40°C) to 122°F (50°C) ambient range for pendant and wall mounting (recessed mount max 104°F / 40°C)
• Certifications: UL Certified, FCC Part 15 Subpart B Class A compliant
• Rated Life: LED chip lifetime L70 >100,000 hours @ 77°F (25°C) ambient fixture temperature; 50,000-hour rated luminaire lifetime
• Form Factor & Design: Extruded aluminum housing with tool-free internal quick-connects for daisy-chaining up to 7 fixtures (<420W at 120V / <960W at 277V)
• Emergency Backup Compatibility: Compatible with Keystone SmartSafe 5W (~500 lm) and 10W (~1,000 lm) 90-minute LED emergency backup drivers (factory- or field-installable, sold separately)

Performance & Light Output

At 40W: 5,200 lm (2700K / 130 lm/W), 5,200 lm (3000K / 130 lm/W), 5,240 lm (3500K / 131 lm/W), 5,320 lm (4000K / 133 lm/W), 5,280 lm (5000K / 132 lm/W).

At 30W: 3,900 lm (2700K / 130 lm/W), 3,900 lm (3000K / 130 lm/W), 3,930 lm (3500K / 131 lm/W), 3,990 lm (4000K / 132 lm/W), 3,960 lm (5000K / 132 lm/W).

At 25W: 3,250 lm (2700K / 130 lm/W), 3,250 lm (3000K / 130 lm/W), 3,275 lm (3500K / 131 lm/W), 3,325 lm (4000K / 133 lm/W), 3,300 lm (5000K / 132 lm/W).

Selectable distribution modes split total lumen output across 100% Down / 0% Up, 70% Down / 30% Up, or 50% Down / 50% Up. CRI >80 across all configurations. LED chip lifetime L70 >100,000 hours @ 77°F (25°C) ambient fixture temperature (50,000-hour rated luminaire lifetime).

Form Factor & Design Profile

Designed for modern architectural environments, the 4ft Linta Shapes linear fixture features an extruded aluminum body (2.76" W × 3.15" H) that links seamlessly in continuous rows. Installers can remove the end caps, open the topside of the fixture, insert the included linking bracket, connect internal wiring via integrated quick-connects, and secure the seam with included buckles. Up to 7 fixtures can be daisy-chained per input power cord provided total connected load remains below 420W at 120V or 960W at 277V. An optional 32-foot roll-out monolithic lens (sold separately) can be cut to length in the field to create a continuous, seam-free lens across connected runs.

Smart & Control Features

The KT-LALED40PS linear fixture is powered by a Keystone 0–10V dimming LED driver with Dim-to-Off and an integrated 12V AUX tap supporting SmartLoop wireless lighting controls:

• 0–10V Continuous Dimming with Dim-to-Off (Standard): Dims smoothly down to off on standard 0–10V low-voltage control circuits and integrates with commercial dimmers and building automation systems.
• Keystone SmartLoop Bluetooth Mesh (Accessory): Accepts factory- or field-installable 12V Bluetooth mesh individual fixture controllers with integrated daylight and PIR motion sensors (KTSL-FC2-12V-SM-PIR suffix /FC2 or KTSL-FC5-12V-IM-PIR suffix /FC5 in White, sold separately) via dedicated SmartLoop sensor end caps or integrated sensor mounts (compatible with pendant hanging installations only).

Electrical

Powered by a Keystone 0–10V dimming LED driver operating on 120–277V AC input with Dim-to-Off and a 12V AUX power tap. Delivers high electrical efficiency with a Power Factor >0.95 and Total Harmonic Distortion (THD) <20%. Note: Fixture does NOT include an input power cord; one 18/5 or 18/6 SJT input power cord (sold separately) is required per continuous run of up to 7 connected fixtures (<420W at 120V and <960W at 277V).

Emergency Battery Backup: Compatible with Keystone SmartSafe emergency LED drivers to provide 90 minutes of standby illumination during a primary power failure, including 5W constant-wattage backup KT-EMRG-LED-5C-500-SEN (suffix /EM5, ~500 lumens) and 10W constant-wattage backup KT-EMRG-LED-10BC-1000-SEN2 (suffix /EM10, ~1,000 lumens) — sold separately.

Construction

Housing & Thermal: Extruded aluminum housing engineered for modular tool-free assembly and passive thermal dissipation.

Lens & Optics: Diffused polycarbonate lens providing uniform illumination across 100% down, 70% down/30% up, and 50% down/50% up selectable distributions.

Finish: White architectural finish.

Environmental Sealing: UL Certified for dry or damp locations. Operating ambient temperature range: -40°F (-40°C) to 122°F (50°C) for pendant and wall mounting (104°F / 40°C maximum for recessed mounting).

Dimensions & Weight: 47.48" L × 2.76" W × 3.15" H. Fixture weight: 7.0 lbs.

Installation & Mounting

Standard Mounting: Includes a standard 15-foot aircraft cable hanging kit with (2) 15' aircraft cables with tapped base couplers and hardware for surface mount, (2) 15' aircraft cables with looped ends, (2) fixed aircraft cable grippers, and (2) adjustable "Y" cable grippers that slide along the length of the fixture. Input power cords and ceiling canopy covers are sold separately.

Continuous Run Mounting: Includes (1) fixture linking bracket with quick-connect wiring and buckles for end-to-end daisy-chaining up to 7 fixtures (<420W at 120V / <960W at 277V).

Accessories (Sold Separately):

• Input Power Cords & Harnesses (Required — 1 per Run): KT-CS-NP-10-18/5-W /LA (10' 18/5 300V SJT White cord), KT-CS-NP-10-18/6-W /LA (10' 18/6 300V SJT White cord), KT-CS-515P-6-18/3-W /LA (6' 125V NEMA 5-15P plug cordset), KT-LALED-WH-MD-KIT (multi-directional center-feed wire harness) — sold separately
• Round & Square Canopy Kits (White): KT-LALED-5CC-1-F-KIT (5" round feed), KT-LALED-5CC-1-NF-KIT (5" round non-feed), KT-LALED-2CC-1-NF-KIT (2" round drywall non-feed), KT-LALED-2CC-2-NF-KIT (2" round T-bar), KT-LALED-5CC-2-NF-KIT (5" round T-bar), KT-LALED-2CC-3-NF-KIT (2" round masonry), KT-LALED-CC-UNV-NF-KIT /A (universal round non-feed), KT-LALED-5SC-1-F-KIT (5" square feed), KT-LALED-5SC-1-NF-KIT (5" square non-feed), KT-LALED-SC-UNV-NF-KIT /A (universal square non-feed), KT-LALED-CANOPY-1-KIT (pair of 5" circular canopies), KT-JBOX-4TB (4" octagon T-bar J-box) — sold separately
• Wall, Surface & Recessed Mount Kits: KT-LALED-4A-WM-KIT (4ft White wall mount kit with 5-wire harness), KT-LALED-A-LBR-WM (wall mount linking bracket), KT-LALED-WH-WM-20-KIT (20' 5-wire wall harness), KT-LALED-4A-SM-KIT (4ft White surface mount kit), KT-LALED-4A-RM-KIT (4ft drywall recessed mount kit) — sold separately
• Optical Lens & Louver Kits: KT-LALED-A-32S-LENS-KIT (32' roll-out monolithic lens), Hexagonal & Straight Blade Louver Kits with Louver End Cap KT-LALED-A-EC-LVR — sold separately
• SmartLoop Sensors & Mounts: KTSL-FC2-12V-SM-PIR, KTSL-FC5-12V-IM-PIR, SmartLoop End Caps KT-LALED-A-EC-SL & KT-LALED-A-EC-SL-2, Integrated Sensor Mount KT-LALED-A-MR-SL-2, and Harness KTSL-FC5-WH-23 — sold separately
• Emergency Battery Backups (4ft & 8ft Only): KT-EMRG-LED-5C-500-SEN (5W, ~500 lm, 90-min CEC T20 compliant), KT-EMRG-LED-10BC-1000-SEN2 (10W, ~1,000 lm, 90-min CEC T20 compliant), and Emergency Test Button End Cap KT-LALED-A-EC-EM — sold separately

Certifications & Rebates

• UL Certified: Certified for dry and damp locations.
• FCC Part 15 Class A: Meets FCC Part 15, Subpart B, Class A standards for conducted and radiated commercial emissions.
• ANSI C78.377-2017: Meets correlated color temperature (CCT) uniformity guidelines across all 5 selectable color steps.

Typical Applications

• Modern Corporate Offices & Conference Rooms — Switchable 100% down, 70/30, and 50/50 direct/indirect lighting distributions balance task illumination and ceiling ambiance
• Educational Classrooms & Lecture Halls — Field-adjustable 40W/30W/25W power settings and 5-step CCT (2700K–5000K) adapt to varying ceiling heights and visual presentation needs
• Healthcare Clinics & Medical Corridors — Extruded aluminum housing with diffused polycarbonate lens and >80 CRI provides uniform, glare-controlled illumination
• Hospitality Lobbies & Reception Areas — Clean White finish with tool-free continuous-row linking up to 7 fixtures and optional 32ft monolithic lens creates seamless architectural lines
• Retail Boutiques & Showrooms — 0–10V dim-to-off driver with 12V AUX tap supports optional SmartLoop Bluetooth mesh occupancy and daylight harvesting controls

What's Included

• Keystone KT-LALED40PS-4A-8CSF-VDIM 4ft Linear Architectural LED Fixture — White
• (2) 15' aircraft cables with tapped base couplers and hardware (for surface mount)
• (2) 15' aircraft cables with looped ends
• (2) Fixed aircraft cable grippers and (2) Adjustable "Y" cable grippers
• (1) Fixture linking bracket (for multi-fixture continuous runs; input power cord NOT included)