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The award-winning surgical light family


Design optimized for OR's air flow

One cause of contamination is uncontrolled air flow in operating rooms. Q-Flow™ is designed for an optimized air flow that allows ventilation to work properly in an operating room. Traditional surgical light heads cause air to rise in the operating area, resulting in increased particle content and an increased infection burden for the patient. Due to the optimally designed Q-Flow™, with a turbulence intensity of only 15.9 %, there is no additional particle burden created in the operating area. In addition, this also improves the working conditions for the surgical team, as it helps to keep the area clean from harmful smoke and gases.

Fluent - NEW!

Main features:
• Excellent optical performance
• Design optimized for air flow
• Fluent usability
• Easy to clean
• MeriMote and OpenOR compatible

Functional simplicity


Additional features:
• HD camera option
• Green ambilite
• Lightweight


Flexible viewing angles


Additional features:
• Intueri™ Sterile user interface
• DOC™ Dynamic Obstacle compensation


Maximum comfort and ease of use

Examples of Available Arm Options



• 50 mm, 65 mm or 110 mm ceiling tube

• 65 mm or 110 mm ceiling tube

• 110 mm ceiling tube

• 110 mm ceiling tube

TitleQ-Flow 6FQ-Flow 4FQ-Flow 6Q-Flow 4Q-Flow 6iQ-Flow 4i
Primary voltage100 - 240 V100 - 240 V100 - 240 V100 - 240 V100 - 240 V100 - 240 V
Secondary voltage24 V24 V24 V24 V24 V24 V
Illumination intensity Ec at 1m distance160000 lx140000 lx160000 lx140000 lx160000 lx140000 lx
Depth of illumination, @ 20%1800 mm1500 mm1800 mm1500 mm1800 mm1500 mm
Depth of illumination, @ 60%1200 mm690 mm1200 mm690 mm1200 mm690 mm
Colour temperature3700/4400/5100 K3700/4400/5100 K3700/4400/5100 K3700/4400/5100 K3700/4400/5100 K3700/4400/5100 K
Light field200 - 370 mm200 - 320 mm200 - 370 mm200 - 320 mm200 - 370 mm200 - 320 mm
Light field diameter, value d10330 mm270 mm330 mm270 mm330 mm270 mm
Light field diameter, value d50190 mm150 mm190 mm150 mm190 mm150 mm
Working distance700 - 1800 mm650 - 1700 mm700 - 1800 mm650 - 1700 mm700 - 1800 mm650 - 1700 mm
Colour rendering index (Ra)989898989898
Red colour rendering index (R9)989898989898
Number of LEDs906990699069
Average life time of LED>60 000 h>60 000 h>60 000 h>60 000 h>60 000 h>60 000 h
Size of light head700 mm560 mm700 mm560 mm700 mm560 mm
Weight of luminaire16 kg13 kg16 kg13 kg16 kg13 kg
Skin colour rendering index (R13)98 98 98 98 98 98
Integrated dimming (%)10 - 100 %10 - 100 %10 - 100 %10 - 100 %10 - 100 %10 - 100 %
Turbulence intensity, DIN 1946 (%)15.9 %35 %15.9 %35 %15.9 %35 %
Power consumption (W)100 60 100 60 100 60
Product Code520210, 520220, 520222, 520230, 5204000520210, 520220, 520222, 520230, 5204000520210, 520220, 520222, 520230, 5204000520210, 520220, 520222, 520230, 5204000520210, 520220, 520222, 520230, 5204000520210, 520220, 520222, 520230, 5204000

Benefits of the Q-Flow family

Reduced risk of infection

The design of the Q-Flow light is optimized to improve air flow
circulation in the operating area. This will help keep the area clean, improving working conditions for the entire surgical team and increasing patient safety. Turbulence intensity is remarkably low 15.9%, when the industry standard specifies it to be below 37.5 %.

Perfect tissue color rendering

The R9 value (red) of the Q-Flow light is the best in its class 98,
making it perfect for the surgeon to between different tissue and
vascular colors. The R13 value (skin) 98 is also excellent, which is
particularly important in plastic surgery and in operations where
seeing the skin accurately is important.

Comfortable working conditions

Merivaara’s Dynamic Obstacle Compensation (DOC™) decreases the need to adjust the luminaire. Ergonomics and efficiency of the entire surgical team is improved significantly.
• Shadowless light in the surgical area provides optimal light in all circumstances
• Automatic light dimming reduces temperature above surgical team’s heads
• Light restores original lighting conditions automatically

Intuitive to use

Merivaara´s patented Intueri™ system provides surgeons a possibility to adjust the dimming and the field size of the light field from the sterile area, allowing surgeons to keep their focus on the operating area. The Intuitive user interfaces of the Q-Flow touch panel and its auxiliary controllers – multifunctional remote control Merimote™ and integration system OpenOR™ – offer similar, simplified controls for the light and its camera, in multiple languages. This allows users to switch between control devices smoothly as needed.

Ergonomic camera solutions

The in-light camera unit is completely hidden behind the cover glass, leaving no obstacle in the surgeon´s peripheral view. Thanks to the central position of the camera unit, the camera can always be centered in the operating range. Wireless technology enables the suspension arms rotate a full 360 degrees, allowing surgeons to focus the camera at optimal viewing angle.

RedDot 2017 Winner & Fennia Prize 2017 Grand Prix Winner

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