LED is a semiconductor diode with a very long life. When the luminous flux decays to 30%, its life span reaches 30 000h. The life of metal halide lamps is 6000-12000h, and the life of high-pressure sodium lamps is 12000h.
The basic structure of the LED courtyard lamp is that a piece of electroluminescent semiconductor material is placed on a leaded shelf, and then sealed with epoxy resin to protect the inner core wire, and has good seismic performance.
The color rendering index of white LED garden lights is better than that of high pressure sodium lights. At the intermediate vision level, the human eye can distinguish things more easily in a high color temperature environment than in a low color temperature environment. The color rendering of white LED garden lights is also much better than that of high-pressure sodium lights. The color rendering index of the high pressure sodium lamp is only about 20, while the white LED courtyard lamp can reach 70 to 90.
LED courtyard lights can achieve a more perfect dimming function. Due to the large working range, its light output is proportional to the working current, so it is possible to reduce the current to dimming. In addition, since frequent switching does not cause much damage to it, the dimming of the LED garden light can also be achieved by pulse width adjustment, that is, the luminous intensity of the LED can be effectively adjusted by adjusting the duty cycle of the voltage and the operating frequency.
In the optical system of the lamp, the luminous flux loss of the LED light source is small. Different from traditional light sources, LED light sources are half-space light sources: high-pressure sodium lamps or metal halide lamps are light sources that emit light in all spaces. The light emitted from one half-space needs to be changed 180" to the other half of the space. When relying on reflectors When it comes to completion, the absorption of light by the reflector and the blocking of the light source itself are inevitable. However, with the use of LED light sources, there will be no loss in this regard, and the light utilization rate is higher.
The LED light source does not contain harmful metal mercury and will not harm the environment after being scrapped.
Solar LED courtyard lights have multiple characteristics of both solar and semiconductor LEDs. It is mainly composed of LED light sources, solar panels, solar battery components, maintenance-free green batteries, controllers, light poles and lamp shades. Independent power supply during installation, so there is no need to embed cables in advance, thus saving investment in transformers, power distribution cabinets and cables. And it is environmentally friendly, beautiful, easy to install and safe.
Solar LED Garden Light
Although the current cost of solar LED garden lights is higher than that of ordinary street lights, it is convenient to install, and there is no need to pay for electricity in the future, and the operation and maintenance costs are lower. According to calculations, the cost of solar street lights can be recovered after 4 years of use.
The scope of application is the lighting and decoration of urban roads, commercial and residential communities, parks, tourist attractions, squares, etc. The mains lighting system in the above-mentioned places can also be transformed into a solar lighting system according to user needs.