Solar Powered Outdoor Lighting Fixtures

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When not biased, the solar cell is irradiated with white light. Measured at different load resistor R flowing through the solar battery current I and the output voltage of the solar cell U, analyze the resulting data available current I and the voltage U changes the relationship summed ISC = 0.722mA; UOC = 3.78V. Similarly, the relationship between the solar cell output power P and the load resistor R summed Pmax = 1.887mW; this time R = 5400Ω. Final calculated fill
Filling factor: FF = Pm / UocIsc = 1.887 / 3.78 * 0722 = 0.692
5.1.2 Light Effects
In the dark box, take J0 as a standard set of light intensity, in this experiment, the horizontal distance from the light source 20 cm of the light intensity as a standard light intensity, measured with a photometer where the light intensity J0. By changing the distance between the light source of the solar cell to d, to change the light intensity J. The J / J0 is a solar cell to accept the relative light intensity. By measuring Isc, Uoc and J / J0, can be drawn Isc, Uoc respectively approximate function J / J0 were presented between lines, curves single increase distribution. Seen Isc, Uoc and the relative light intensity J / J0 of
Function formula is:
5.1.3 Output power and the relationship between light intensity
By changing the light intensity, which is the change in the distance d single crystal silicon solar cell and the light source, the measurement of several different sets of output voltage and output current value, the output power can be obtained under different illumination
Rate, then get relationship between the output power and light intensity, as shown in Figure 17:
[10] 13 Output power and relative light intensity J / J0 relationship
 Figure 4-1 Scenario 2. Option 2 also uses a bionic design, developed by the martyr's mosaic and its abstract design, the flowers are white, the stems are green, which represents purity and love, gives a quiet soothing. The leaves made of hollow form, the middle is the lamp column core, so that the overall easy and simple, at night to walk on the road people a comfortable and relaxed.
Solar street lights have begun to be applied to our lives, but China's solar street lighting design research has just started. Today 's street lamp is not only a tool to provide lighting source, it also bear the city to create a night light environment; to protect people' s life and property and other important responsibility; it has a direct impact on people 's physical and mental health, quality of life. Therefore, the design of solar street lights has a very important practical significance.