CRAFT II the power pack that last
CRAFT II plus – the unbeatable power pack. Protective shield made from a single mould: CRAFT II plus is created using the aluminium die-casting process. The luminaire is distinguished by its impressive resilience and revolutionary thermal management – even when faced with challenging ambient temperatures and extreme mechanical or chemical stresses.
CRAFT II performance – robust and lightweight. Sustainably produced, powerful in action: housed in a lightweight yet sturdy sheet steel housing, the CRAFT II performance is a highly efficient high-bay luminaire. Extremely versatile thanks to six different light distribution curves and with housing “Made in Germany”, in a zero carbon production process.
Revolutionary Thermal Management
The CRAFT II plus uses two fundamental principles of physics, the Venturi effect and the Coandă effect, to cool and clean itself. The result: the innovative high-bay luminaire is in a completely different class from its predecessor model and can withstand high ambient temperatures (up to 70°C) – throughout its entire life time of around 100 000 hours. To achieve this, CRAFT II plus relies on an intelligent interplay of air pressure, air speed and air temperature, an aluminium housing with excellent thermal conductivity.
The Coandă effect is a principle of physics used in the aviation industry and applied to CRAFT II plus: a pressure imbalance presses the airflow against the curved surface of the luminaire. This efficiently cools the LED boards in particular, at the same time, the airflow also removes everyday dust from the surface of the luminaire.
Efficiently cooled thanks to the Venturi effect. Specially designed nozzles in the body of CRAFT II plus generate negative pressure – and thus ensure that the air circulates at a high speed between the LED drivers and LED boards. The so-called Venturi effect cools the CRAFT II plus luminaire very efficiently and allows the power pack to be operated even at extremely high ambient temperatures.
Whether in a heavy industry, in agriculture or a gymnasium – wherever extreme chemical and mechanical stresses are at play, the strengths of the CR AFT II plus really come into their own. Tough. strong and resilient, housed in a high-quality aluminium housing. The CRAFT II plus luminaire is particularly impact-resistant thanks to a glass fibre-reinforced polyamide cover for the electronic components and thanks to diffusers, which are resistant to chemical and mechanical stresses.
Protective Shield from a Single Mould
CPS – three letters, one promise: the so-called CRAFT PROTECTION SHIELD provides the CRAFT II product family with a type of protective shield for challenging industrial environments. In both the aluminium and sheet steel variants, the housing is made from a single mould. Zumtobel thus guarantees that sensitive components such as sensors, emergency or IoT technology are completely covered and also prevents water from getting into the luminaires.
On conventional high-bay luminaires, screws on the top mean that there is a danger of moisture and chemicals getting into the housing from above. The CRAFT PROTECTION SHIELD eliminates potential entry points on the top of the luminaire.
All screw connections on CRAFT II performance and CRAFT II plus are on the underside of the luminaire and thus completely covered by the innovative CPS. A protective shield that is as simple as it is effective.
High Pressure Cleaning
Attractive appearance, minimal cleaning effort: the clear housing design with smooth surfaces and rounded corners prevents water or dirt from accumulating on the luminaires of the CRAFT II product family. But does dust still sometimes need to be removed? The smooth surface (CRAFT II per formance) and the large distance between the ribs on the high-bay luminaire (CRAFT II plus) makes it easy to clean the luminaires by hand with a cloth.
CRAFT II luminaires are supplied with water protection class IP66 as standard. Those who want to bring out the heavy guns, for example a high-pressure washer, can do this for the CRAFT II plus luminaire without hesitation because this can be supplied with IPX9 on request. This maximum degree of protection is made possible by the CRAFT PROTECTION SHIELD and the innovative sealing system, which places all sealing channels at the same level. For the CRAFT II plus, these come with a corrosion-resistant liquid seal, which follows the shape of the sealing components. Maximum protection, even at maximum water pressure.
Light Quality from Zumtobel
The CRAFT II product family doesn’t just make use of pioneering technologies, it also benefits from the extensive project experience and in-depth lighting exper tise of the Zumtobel Group. For example, the optics engineers have replicated a natural phenomenon called TIR – total internal reflection. Transparent, laser-structured lenses with a micrometrically small, diagonal dome-like structure reflect the whole ray of light like a mirror. This distributes the light rays optimally in the room – precise and highly efficient.