MIREL evolution

Name: MIREL evolution
Brand: Zumtobel Lighting

Recessed ceiling lights from Zumtobel Lighting, Designed by Studio Ambrozus

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Product description

MIREL evolution with visible LED lenses
Only 52 mm high, MIREL evolution is the flattest surface-mounted luminaire in the Zumtobel range. When it comes to luminaire efficiency, it is exemplary, too: up to 136 lumens per watt result in short payback periods. Light distribution is effected via the lenses at a rate of 95 per cent; only 5 per cent are accounted for by the reflections from the lighting chamber. The lumen packages and module sizes, however, have not changed as compared to the classic recessed luminaire. Accordingly, conventional luminaires can simply be replaced by exchanging them 1:1. Another benefit: MIREL evolution is available in many versions, for instance as an emergency luminaire with separate battery supply. A special UV stabiliser protects the polycarbonate diffuser from turning yellow. Thus, MIREL evolution is able to keep its white colour all through its period of service.

MIREL evolution with LRO optic
The combination of a standardised, high glare suppression, even with large lumen packages (UGR < 19 and L65 < 3000 cd/m²), and high efficiency make MIREL evolution LRO the ideal luminaire for offices and educational institutions. The innovative, 3-layer LRO optic gives it a uniform appearance to satisfy the wish for brilliant and at the same time homogeneous light. Cleaning is also made easy thanks to the smooth surface that makes it difficult for dirt and dust to stick to the surface.

Concept

With MIREL evolution, Zumtobel is steering louvre luminaires towards modern times. By giving the luminaire a distinct appearance, Zumtobel has mastered the challenge of integrating energy-efficient LED technology into a tried-and-tested stylistic idiom: the lenses and the light source of MIREL evolution are visible to the user and are thus becoming a key design feature of the otherwise minimalist luminaire.

Thanks to the particular shape of the lens, a directional beam pattern and a brilliant appearance are achieved without any annoying glare. Light distribution is effected via the lenses at a rate of 95 per cent; only 5 per cent of the luminous flux are reflected by the “louvre”. This results in more precise direction of light and higher luminous efficiency, which is also indicated by a luminaire efficiency factor of 112 lm/W. The luminaire's luminous flux levels and module sizes, however, have not changed as compared to the classic recessed luminaire. Conventional luminaires can be replaced on a one-to-one basis, which is a convincing argument in favour of using MIREL evolution in refurbishment projects.

The stylistic idiom of MIREL evolution featuring an opal optic has been reduced even further, so that the luminaire now appears as a flat, level luminous panel. For the version fitted with an opal cover, a 3Dprotect® reflector is used, which not only ensures perfect direction of light but also protects the sensitive LED modules during installation. Due to the interplay of innovative LED technology and direction of light in MIREL evolution fitted with an opal cover, a luminaire efficiency factor of up to 123 lm/W is possible.

With a colour rendering index of Ra > 80, the louvre luminaire is particularly suitable for the various visual tasks to be performed in offices. MIREL evolution is available as a recessed, lay-in and surface-mounted luminaire in a square or linear version.