High-output 4-inch open-aperture linear LED offered in indirect/direct, direct, uplight/downlight, recessed, pendant, and surface-mount forms, published at 408–2,143 lm/ft across four output packages.
| Luminous flux | 408–2143 lm/ft |
|---|---|
| Color temperature (CCT) | 3000K / 3500K / 4000K |
| CRI | ≥80 |
| Mounting | Pendant, Surface mount, Recessed T-bar, Recessed spackle flange, Recessed visible flange |
| Dimensions | 4 in open aperture, 4 in body height; runs from 2 ft minimum in 1 ft increments (12 ft maximum section length) |
| Distribution | Indirect/Direct, Direct, Uplight/Downlight |
| Finishes | Signal White, Finelite Black, Satin Aluminum, Custom RAL |
| Dimming | 0–10V 100%–10% standard; 1% and 0.1% options, DALI, EldoLED DMX, and Lutron EcoSystem 1% driver options |
| Rated environments | Damp location, Chicago Plenum option |
| Rated lifetime | 60,000 h |
| Warranty | 10 years |
Specifications sourced from the manufacturer's datasheet . Verify against the current revision before specifying.
Finelite's HO4 (High Performance Open 4" Aperture) is a high-output linear LED luminaire built on a precision-cut 6063-T6 extruded aluminum body with an open 4-inch aperture. It is offered in indirect/direct, direct, and uplight/downlight distributions and mounts as a pendant, surface-mount, or recessed (T-bar, spackle-flange, or visible-flange) fixture. Four downlight output packages — Standard, Boosted, High, and Very High — publish delivered photometry from 408 lm/ft on the recessed Standard-output direct build up to 2,143 lm/ft total for the Very-High uplight/downlight configuration (3500K, 80 CRI); uplight and downlight packages can be specified independently on 3 ft and longer runs, with tailored outputs on request. Static-white 3000K, 3500K, and 4000K selections are available in 80 or 90 CRI. Runs are built from a 2 ft minimum in 1 ft increments up to a 12 ft maximum section length, with mitered square, rectangle, L, and U configurations. Top Glow and flush diffusers, widespread and asymmetric optics, 0–10V, DALI, DMX, and Lutron EcoSystem drivers are published. HO4 is rated for damp locations (Chicago Plenum optional via GridBox), holds L90 lumen maintenance at 60,000+ hours, and carries a 10-year performance-based warranty.
Pick from HO4's published options to compose a copyable, submittal-ready specification. All choices come from the manufacturer datasheet — confirm the final build against the current revision before ordering.
Submittal summary
Insight Lighting · Linear
Architectural linear suspended direct/indirect luminaire with an elegant curved profile, in 6 lengths from 33.5" to 92.25" delivering 2,328–9,500 total lumens at up to 128 LM/W.
Insight Lighting · Linear
Suspended direct / direct-indirect linear on a 0.125" precision-bent-aluminum tubular profile in six lengths (34"–92") — 82 CRI (optional 90) white light, 19–81 W delivering up to 4,314 delivered lumens.
Axis Lighting · Linear
Ultra-slim semi-direct architectural linear family — up to 1000 lm/ft at 125 lm/W, 80/90 CRI, tunable-white and BIOS options, in 2–12 ft sections and continuous system runs.
