Brand solar garden lamp which is good?
First of all, in order to improve the utilization rate of street lamps in road lighting, the light intensity center of the luminaire inclines to a certain angle to the road direction, and the ideal condition is that the light intensity center falls on the central line of the road. Considering the street lights themselves and the horizontal direction, there will be about 10. The angle of elevation can be calculated according to the geometric two angle relation. The center of light intensity of the M luminaire should be shifted to the direction of the road by 15~20.. The lens is assembled on the LED bracket, and the high-power LED chip is fixed on the bracket. The surface of the lens can be plated with an antireflection film, and the cavity between the lens and the chip is encapsulated with high temperature silica gel to reduce the multiple reflections of the light in the cavity and refract directly through the lens.
Compared with the conventional LED lens, this lens plays a polarizing enhancement effect, which is equivalent to the integration of two optical lenses and a primary lens. The main feature of LED garden lamps for lighting is the directional emission characteristics, because high-power LED are equipped with reflectors, and the efficiency of this reflector is significantly higher than the efficiency of the lamp reflector. In addition, the efficiency of the self reflector has been included in the light efficiency test of the LED. The road lamp LED should as far as possible the use of the characteristics of LED directional emission of light, so that all LED road lamps in the light illuminated areas directly at the road, and then use the auxiliary reflector lamps light distribution, to achieve reasonable integrated light distribution. It should be said that road lamps should be in line with the CJJ 45--2006 and CIE 31 and CIE 115 standards of illumination and illumination uniformity requirements, lamps should include 3 light distribution function. The LED with reflector and reasonable beam output angle has a good primary dimming function. In the light energy, according to the height of the street lamp and the width of the road, each I, the installation position of the ED and the direction of the transmitting light can be designed, and the good two time light distribution function can be realized.
Depends on what brand does not shape, the market depends on the use of solar panels, monocrystalline monocrystalline silicon power generation panels, relatively look at the battery, storage battery to choose the brand, its main inverter selection of monocrystalline silicon, mainly to see the photoelectric conversion rate higher
