Technical specifications
Technical specifications for Cylinder 4" Surface Mount | Wattage | 9–15 W |
| Luminous flux | 625–2000 lm |
| Efficacy | 133 lm/W |
| Color temperature (CCT) | 2700K / 3000K / 3500K / 4000K |
| CRI | ≥90 |
| Beam angle | 15° / 25° / 38° / 60° |
| IP rating | IP54 |
| Mounting | Surface (octagonal junction box, 5" round adapter plate), Aircraft cable mount (10 ft), Suspension set (10 ft) |
| Dimensions | Ø115 mm plate / Ø100 mm body; 4" (100 mm) high × 4" (100 mm) wide; trim 3 lb (1.4 kg) |
| Distribution | Direct |
| Finishes | RAL 9016 White, RAL 9005 Black, Custom color |
| Dimming | 0–10V (5%), Triac (line-voltage, standard), DALI; 120/277/347V input (remote driver at 347V and for DALI) |
| Rated environments | Dry, Damp location |
| Rated lifetime | 50,000 h |
| Warranty | 5 years |
Specifications sourced from the
manufacturer's datasheet
. Verify against the current revision before specifying.
About this product
Cylinder is ON LIGHT's 4" surface-mount LED cylinder downlight, a die-cast aluminum fixture that installs over an octagonal junction box with a 5" round adapter plate. Delivered output — nominal values at 3500K/84 CRI — runs 625 lm (9 W), 1,200 lm (9 W), 1,800 lm (15 W), and 2,000 lm (15 W), for a range of 625–2,000 delivered lumens at 9–15 W and a nominal efficacy up to 140 LM/W (custom lumen output available on request). The Class 2 LED engine holds 3-step MacAdam ellipse color consistency across 2700K, 3000K, 3500K, and 4000K, with 80 and 90 CRI options. Reflectors ship in 15° (SP), 25° (NFL), 38° (FL), and 60° (WFL) beam spreads. Drivers offer 0–10V dimming to 5%, standard Triac (line-voltage) dimming, and DALI, at 120V, 277V, or 347V (remote driver required at 347V and for DALI). The roughened textured powder-coat finish comes in RAL 9016 White and RAL 9005 Black plus custom color, with surface junction-box mounting standard and optional 10 ft aircraft-cable mount or 10 ft suspension set. The trim measures 4" (100 mm) high × 4" (100 mm) wide (Ø115 mm plate / Ø100 mm body) and weighs 3 lb (1.4 kg). Lumen maintenance is L80/B10 rated to 50,000 hours at 25°C (LEDs tested per IESNA LM-80-08), rated IP54 for damp and dry locations, ETL listed by Intertek, and backed by a 5-year warranty on the LED light engine, driver, and all fixture components; luminaires are assembled in Beloeil, QC, Canada.