have been the brand of choice for healthcare professionals for over 40 years. SL400L Information The DARAY SL400 series Operating Theatre Light has been designed to provide a high intense beam with excellent shadow dilution and accurate colour rendering. The SL400 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 SL400 series is an extremely cost effective lighting solution that meets the needs of a demanding operating theatreQuality 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 Diameter of light head SL450L - 500mm Diameter of light head SL470L - 700mm Luminance (Lux) @ 1m SL450L - 120,000 lux Luminance (Lux) @ 1m SL470L - 160,000 lux Light Field Diameter 120 to 350mm Number of LEDs SL450L - 54 Number of LEDs SL470L - 108 Temperature Raise on Surgeon < 2°C Standard Installation Height 2.7m - 3.3m, bespoke options available Power Supply (V/HZ) 230V 50Hz .