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LED Tunnel Lighting By adopting long-life, high-efficiency white LEDs as the light source and incorporating an initial luminous flux correction function, we achieve low maintenance and energy-saving features. 1. Long Life: 20 years, with only one replacement of the LED and control device; lifespan of 90,000 hours. The LED module has a long lifespan of 90,000 hours, allowing for maintenance-free operation for over 10 years with continuous lighting of 24 hours a day. By coordinating the lifespan of the LED module and control device, only one replacement of both will be needed during 20 years of operation. 2. Lineup: Two types of light distribution and four types of light source capacities. With two types of light distribution and four types of light source capacities, it can accommodate a wide range of design speed conditions (40-80 km/h). ■ Ceiling-mounted wide span (CL) … two types: LED 50W, 80W ■ Side wall-mounted wide span (BL) … four types: LED 40W, 50W, 80W, 100W 3. Supports special dimming: A function made possible by LEDs; two-stage dimming is possible. 4. Initial luminous flux correction function (our unique feature). 5. Standard equipped with luminous flux reduction alarm function (our unique feature). 6. Modularization of component parts.

By adopting a 65% dimming capability, brightness can be reduced even under conditions where dimming was previously impossible, achieving energy savings. An illumination sensor is used for initial luminous flux correction. This not only corrects the initial excessive luminous flux but also suppresses fluctuations in luminous flux at low temperatures, further enhancing energy savings. The initial luminous flux correction unit is equipped with an alarm lamp, which flashes (using a red high-brightness LED) when the luminous flux (maintenance rate) of the LED module falls below 80%. The alarm function allows for easy identification of when the LED module needs to be replaced, improving maintainability and safety. By integrating the LED module and LED module control device into a unit, labor-saving in replacement work is achieved. A disconnection switch for turning off the main power supply is standard equipment, allowing work to be carried out without circuit power outages. Model: KWLED050006CL-SS-V2 - Luminous flux: 4,900 (lm) - Apparent power (maximum): 48 (VA) - Active power (average): 41 (W) Model: KWLED080010CL-SS-V2 - Luminous flux: 7,840 (lm) - Apparent power (maximum): 78 (VA) - Active power (average): 68 (W)

Tunnel Lighting LED Basic Lighting KWLED08010CL-SS-V2

50 Years of Tunnel Lighting History 1957: Ministry of Construction, Kyushu Regional Construction Bureau, National Route 2, Kanmon Tunnel (At that time, the world's first underwater tunnel) Fluorescent light fixtures supplied 1959: Ministry of Construction, Kanto Regional Construction Bureau, National Route 20, New Sasago Tunnel (At that time, the second longest in Japan) Fluorescent light fixtures supplied 1963: Japan Highway Public Corporation, Meishin Expressway, Sekigahara Tunnel Introduction of FRP (embedded type) sodium light fixtures 1966: Kyushu Regional Construction Bureau, National Route 2, Kanmon Tunnel Introduction of FRP (embedded type) sodium light fixtures 1968: Japan Highway Public Corporation, Tomei Expressway, Nihondaka Tunnel Sodium light fixtures supplied 1996: Tokyo Bay Aqua-Line Tunnel Supply of press-processed fixtures (high-pressure sodium lights) 2010: Ministry of Land, Infrastructure, Transport and Tourism, Chubu Regional Development Bureau, Kisei National Route Office, National Route 42 Enoura Tunnel, LED tunnel lighting fixtures supplied (First supply of LED fixtures ahead of the nationwide initiative by the Ministry of Land, Infrastructure, Transport and Tourism)