Application of LED light source in urban landscape lighting in 2015

Introduction: urban landscape lighting is not the pursuit of brightness, but the creative design of art, LED products should be able to find its place. LED the direction of the light emitting angle is small and strong, can make local focus lighting; in encapsulating materials adding scattering agent can achieve light emitting angle of 175 degrees for a wide range of lighting, the problem is the construction unit in city nightscape lighting over the pursuit of high brightness is difficult for designers to provide enough selection range, currently in lighting project of city in the night LED light source are mainly used:

1, linear LED lamps

LED linear light emitting lamps (tubes, belts, curtain walls, etc.): the contours of the lighting effect can replace the traditional neon lamp, magnesium neon tube, color fluorescent lamp. The commonly used product of rated voltage DC12V, 24V (most of the high-power switching power supply, there are some products with linear power supply), AC220V; control mode is divided into internal control and external control, single combination of tens to hundreds of commonly used in lighting engineering. LED linear luminous lamp with good weatherability, life period of low attenuation, changing color, lighting lighting effect with rail flow changes in outline lighting, city building bridges have been widely used in the. To draw the outline of a building outline lamp as an example, using LED light red, green and blue three color combination principle, under control of the processor can be changed according to different modes, such as ripple type continuous color, color, gradient, timing and transient, the formation of the night edifice effect in different poses and with different expressions.

2, decorative lawn lamp, landscape lamp, bulb, etc.

In the city street or green space, the luminous part of the design of the ring, ribbon and other structures, the local lighting of the lawn; at the same time as a decorative element in the daytime environment. Commonly used products rated working voltage of AC220V, the control mode for internal control (in the case of the need to synchronize changes can be used to achieve synchronization of synchronous lines). In the actual project and gas discharge lamp as light source used as decorative lighting, using lawn lamp, landscape lamp, LED light bulb etc. different shapes and different functions can be combined into a colorful light mirage. This multi color, multi highlights, multi pattern changes, reflecting the characteristics of LED light source.

3, underwater lights

LED underwater lights placed in the water for water lighting, protection level should reach IP68. Rated working voltage DC12V. LED low voltage characteristics make it more than any of the previous lamps to be safe, the advantages of long life also makes it easier to repair, the lighting effect is also more common than PAR lamps, gas discharge lamp is more abundant.

4, the ground lamp: buried lights, light-emitting tiles, stone lamps, etc.

The use of LED light source can be miniaturized size. On the one hand, it can be used as the environmental lighting, on the other hand, it can be used as a decorative lighting or lighting. Based on the pavement structure of lamp specific outlet size. Embedded stone lamp, floor lamp to cut the way of processing and paving stone consistent, to achieve a harmonious environment and light effects. At present, some products have achieved modular design, such as light emitting floor pavement lighting, floor tile size and the size of the product coordination, that is consistent with the modulus requirements: 150 x 150 x 200 x 200; 200; 100; 300 x 300; 400 x 200.

5, the use of solar energy as the energy of LED lamps

The characteristics of LED low power consumption makes use of solar energy as possible, eliminating the low working voltage of traditional light sources required DC-AC conversion circuit, the energy utilization rate is greatly improved and expanded the scope of application, energy saving lamps, favorable environmental protection.