551D
Colour
Optional accessories
Technical Data
last update: 05/12/2025Description
Adjustable projector Ø122 with adapter for installation on base or mains voltage track. LED source with high colour rendering C.O.B (Chip on board) technology -CRI90- Tunable White (2700K-5000K). Body made of die-cast aluminium with rear cap and front ring in thermoplastic material (Mass-Balance). The product allows a rotation of 360° around the vertical axis with mechanical locking and an inclination of 90° with respect to the horizontal plane. Passive heat dissipation. OptiBeam Lens optical system with Wide Flood optics. Body complete with dimmable power supply unit with DALI-2 DT8 protocol, positioned inside the product body.
Projector with Push&Go system designed to facilitate and speed up the coupling between product and optical accessory safely. The mechanical disconnection allows the release of the accessory but not the fall. Possibility of using three internal and one external accessories simultaneously. All internal and external accessories can be rotated by 360° with respect to the longitudinal axis of the projector.
Dimensions
General (mm)
250
Diameter (mm)
ø122
Technical performance
Complies with EN60598-1 and pertinent regulations
Physical properties
Weight (kg)
0.47
Material
Aluminium
Product certification
-
BIS -
ENEC pending
Photometric data
Details
lm system
1612.5
W system
25.9
lm source
2150
W source
21
Luminous efficiency - lm/W (system value)
62.26
lm in emergency mode
-
Light output ratio (LOR)
75
Optic and beam angle
WF - Wide Flood 46°
Adjustability
directional
Light colour quality
CRI (minimum) 90 - Rf (Colour Fidelity Index) 91 - Rg (Gamut Index) 99
Colour temperature
Tunable White K
MacAdam Step
3
Lifetime LED 1
> 50,000h - L85 - B10 (Ta 25C)
Electrical data
ZVEI code
LED
Power Supply
Electronic Power supply included
Mounting options
Integral
Control
DALI-2
Installation
Description
Track or base mains voltage.;
Mounting
Low voltage track, Three circuit track