Technical specifications
Technical specifications for Atto | Wattage | 10–35 W |
| Luminous flux | 1000–5000 lm |
| Efficacy | 143 lm/W |
| Color temperature (CCT) | 2700K / 3000K / 3500K / 4000K / 5000K / 5700K / 6500K |
| CRI | ≥90 |
| Beam angle | 15° / 20° / 24° / 25° / 35° / 36° / 40° / 60° |
| Mounting | Recessed (new construction / remodel) |
| Dimensions | 2" Atto 70 (Ø83 mm opening), 4" Atto 95 (Ø95 mm opening) & 6" Atto 160 (Ø160 mm opening); die-cast aluminum trim, gimbal to 13° |
| Distribution | Direct |
| Finishes | RAL 9016 White, RAL 9005 Black, RAL 9006 Silver, Custom color |
| Dimming | 0–10V (1–5%), DALI, DMX, Casambi; line-voltage + 0–10V on one driver (Atto 95/160); 120/277/347V input |
| Rated environments | Dry |
| 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
Atto is ON LIGHT's die-cast aluminum recessed LED downlight family, offered in three apertures that share the brand's EZ Swap tool-less interchangeable reflector system: Atto 70 (2", Ø83 mm ceiling opening), Atto 95 (4", Ø95 mm) and Atto 160 (6", Ø160 mm). Delivered output spans 1,200–2,000 lm on Atto 70, 1,000–3,000 lm (10–25 W) on Atto 95, and 1,500–5,000 lm (up to 35 W) on Atto 160, with nominal efficacy up to 119.6 LM/W and a high-performance LED option to 194 LM/W. A Bridgelux Vero Series multi-chip engine at 2–3 SDCM/MacAdam ellipse holds tight color consistency; standard white CCTs are 2700K, 3000K, 3500K and 4000K (Atto 70 extends to 5000K, 5700K and 6500K; Atto 160 adds tunable-white and RGBW; food-color renderings for bread, meat and fish are offered), and CRI options are 84 (nominal, min 80), 90, and 97 with typical R9 of 98. Faceted pure-aluminum MIRO reflectors ship in 15°, 20°, 24°, 25°, 35°, 36°, 40° and 60° beam spreads, and the double-gimbal trim pivots up to 13°. Drivers offer 0–10V (1–5%), DALI, DMX, Casambi, and a line-voltage-plus-0–10V option on one driver; input is 120V, 277V or 347V. The roughened textured powder-coat finish comes in RAL 9016 white, RAL 9005 black, RAL 9006 silver and custom colors. Photometrically tested to IESNA LM-79 by an NVLAP-accredited lab with LM-80 lumen maintenance, rated 50,000 hours and rated for dry locations, CSA certified to US and Canadian standards, RoHS, and backed by a 5-year system warranty; luminaires are assembled in Beloeil, Canada.