S4 Series Overview

  • LED light source
  • Digital control panel
  • Cool and comfortable beam
  • Lightweight and slim light head for excellent laminar flow
  • Multi-lens geometry lighting system
  • Low energy consumption
  • Focusable beam
  • Excellent shadow reduction
  • 40,000 hours from the LED module
  • Low 'total cost of ownership'
  • 4,300K colour temperature
  • Integrated camera options available
  • Available in ceiling, wall and mobile

DARAY have been the brand of choice for healthcare professionals for over 40 years.

The DARAY S4 series Operating Theatre Light has been designed to provide a high intense beam with excellent shadow dilution and accurate colour rendering. The S4 series is available as a wall, ceiling or mobile - dual or single arm. All versions have a smooth, fully enclosed head to aid in the management of infection control. A spring balanced arm makes positioning extremely easy, providing a precise and stable beam.

Features include: variable intensity, focusable beam and a digital control panel. The S4 series is an extremely cost effective lighting solution that meets the needs of a demanding operating theatre.

Minimal laminar-flow interference

The fully sealed light head has been aerodynamically designed to minimise turbulence of laminar-flow sterilisation and purification systems.

Digital control panel

A conveniently placed panel contains on/off controls, a power on indicator, bulb-failure alarms and variable output intensity controls

Variable focus

The removable, autoclaveable light-head steering handle doubles as a twist-grip focussing control.

Finely-balanced suspension arms

Multi-jointed, spring-balanced suspension mechanisms permit accurate and stable positioning of the light patch. The arms on ceiling-mounted lights all rotate through 360°.

Video systems and back-up power supplies

CCTV cameras and monitors are available as options on most models, as are wall-mounted battery back-up power supplies.

The new S4 HD camera system features:

  • 3.3 Mega Pixel Quality with Fantastic 20x Optical
  • Enlargement
  • 1080p/1080i Resolution with a high contrast ratio of 800:01:00

The system also has a long coaxial cable, giving you the flexibility to choose your preferred display location

Designed for the medical environment the camera is capable of outputting 262K true colour features and can be adjusted on the fly using the arm mounted control panel allowing the camera to be adjusted as necessary during any operation.

S4 Series Specifications

Light Diameter of light head S450L - 500mm
Diameter of light head S470L - 700mm
Luminance (Lux) @ 1m S470L - 160,000 lux
Light Field Diameter 120 to 350mm
Luminance (Lux) @ 1m S450L - 120,000 lux
Number of LEDs S450L - 54
Number of LEDs S470L - 108
Colour Colour Field Temperature (K) 4,300 ±500k
Colour Render Index (Ra) >95
Colour Render Index (R9) >97
Other Temperature Raise on Surgeon < 2°C
Standard Installation Height 2.7m - 3.3m, bespoke options available
Power Power Supply (V/HZ) 230V 50Hz

S4 Series Accessory Specifications

HD Camera Features Quality 3.3 Mega Pixel
Image Sensor 1/2.8 CMOS
Protocols Adopts Sony VISCA and PELCO
Horizontal Resolution 1080p / 1080i
F = 1.6-3.5, f3.5-85
Horizontal viewing angle 3.5 - 55.4
View Angle (H/V) 160/160
Minimum Object Distance 5mm
Dot pitch (H*V) 0.297*0.297
Contrast Ratio 800:01:00
Video Signal Output HD-SDI, YUV, HDMI, DVI
Minimum Illumination 0.04 Lux / ICR
SNR 50db
Operating Temperature 0-40°C
Response Time < 8ms
Digital Input SDI
Power Input 12v DC

S4 Series Medical Approvals/Certificates

The product(s) in the S4 Series adhere to the following standards in line with the 93/42/EEC Medical Devices Directive - Class 1
2014/35/EU Low Voltage Directive
EN 9001:2015
EN 13485:2016
EN 14971:2012
EN 1041:2008+A1:2013
EN 15223-1:2016
EN 60601-1:2006+A12:2014
EN 60601-2-41:2009+A1:2015
EN 60601-1-2:2015

S4 Series Order Codes & Pricing

Ceiling Mount

DARAY S450 Low Ceiling Height LED Operating Theatre Light (Single Head 500mm) - 120,000 Lux (special order)

DARAY S470 Low Ceiling Height LED Operating Theatre Light (Single Head 500mm) - 160,000 Lux (special order)

DARAY S450/470 Ceiling Mounted LED Operating Theatre Light (Dual Head 500mm/700mm) - 120,000 Lux/160,000 Lux

DARAY S470/470 Ceiling Mounted LED Operating Theatre Light (Dual Head 700mm/700mm) - 160,000 Lux/160,000 Lux

DARAY S450/450 Ceiling Mounted LED Operating Theatre Light (Dual Head 500mm/500mm) - 120,000 Lux/120,000 Lux

DARAY S470 Ceiling Mounted LED Operating Theatre Light (Single Head 700mm) - 160,000 Lux

DARAY S450 Ceiling Mounted LED Operating Theatre Light (Single Head 500mm) - 120,000 Lux

Mobile Mount

DARAY S450 Mobile LED Operating Theatre Light (Single Head 500mm) - 120,000 Lux

Wall Mount

DARAY S450 Wall Mounted LED Operating Theatre Light (Single Head 500mm) - 120,000 Lux


Other bespoke options available for greater ceiling heights - Please call to discuss

S4 Series Accessories

Integrated HD Camera Option (special order, extended delivery)

Monitor options available (special order, call to discuss)

S4 wireless controller for wall/surgeons panel - for S450/470 models (one per head)

S4 wireless controller for wall/surgeons panel - for S460/480 models (one per head)

24V Battery Back-Up Unit (special order, one per head)

S4 Series Downloads

S4 Series Brochures

S4 Series Manuals

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