Recessed volumetric troffer with VL optics for bright, uniform ceilings — 1×1 to 2×4 sizes, 1400 to 7200 lumens up to 134 lm/W, 90 CRI, with BIOS SkyBlue and tunable-white options.
| Luminous flux | 1400–7200 lm |
|---|---|
| Color temperature (CCT) | 2700K / 3000K / 3500K / 4000K |
| CRI | ≥90 |
| Mounting | Recessed T-bar (9/16″ / 15/16″), Screw-slot t-bar, Drywall flange, Surface |
| Dimensions | 1×1, 1×4, 2×2, 2×4 ft; 2×4 = 47 15⁄16″ × 23 7⁄8″ × 3 7⁄8″ deep |
| Distribution | Direct (volumetric) |
| Finishes | White |
| Dimming | 0–10V 1% standard; Lutron, bi-level; BIOS SkyBlue and Axis tunable-white (2700–6500K) drivers; PoE; daylight / occupancy / wireless controls; 120/277/347/UNV/DC |
| Rated environments | Dry, IC-rated, Indoor only |
| Warranty | 5 years |
Specifications sourced from the manufacturer's datasheet . Verify against the current revision before specifying.
Dia is Axis Lighting's recessed volumetric troffer, using a VL volumetric-lens optic to spread bright, uniform light with soft ceiling luminance in T-bar or drywall ceilings. Offered from 1×1 through 2×4, the 2×4 delivers 1400 to 7200 lumens at up to 134 lm/W (per fixture at 4000K), at 90 CRI across 2700/3000/3500/4000K plus Axis tunable white (2700–5000K and 2700–6500K) and BIOS SkyBlue circadian control. Dimming is 0–10V 1% standard, with Lutron, bi-level, BIOS DPB, tunable-white, and PoE driver options plus daylight, occupancy, and wireless controls at 120/277/347/UNV/DC. IC-rated, Dia recesses into 9/16-inch or 15/16-inch T-bar grid, screw-slot t-bar, or a drywall flange (a surface-mount version is also available), is cULus listed, and carries a limited 5-year warranty.
Pick from Dia'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
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