According to the way of power supply, the beacon lights can be divided into two categories: Electric beacon lights and solar beacon lights. According to the degree of integration of products, the solar beacon lights can be divided into integrated type and split type. The integrated type means that lamps and lanterns are combined with batteries, solar panels, etc. to form an integral structure; the split type is generally that solar panels are separated separately and installed separately with lamps and lanterns through long wiring. The former is mainly suitable for lamps with low power consumption. The size of solar panel is small, which is consistent with lamps. The latter is generally large, which is suitable for northern areas with weak sunlight or lamps with high power consumption.
The quality of beacon light mainly depends on three aspects: battery, solar panel and light source.
(1) The battery is the heart of the solar Marine lights, and it is the core factor that determines the service life of the lamp. At present, lead-acid batteries and lithium batteries are generally used in the market. Due to cost considerations, lead-acid batteries have the advantages of low price and disadvantages of short life, difficult maintenance and heavy quality compared with lithium batteries. Lithium battery can be truly maintenance free, with relatively small power attenuation, and also meet the national lightweight standards.
(2) Solar panel mainly depends on its photoelectric conversion efficiency. The photoelectric conversion efficiency of silicon solar panel produced by good manufacturers can reach more than 20%. The solar panel must choose the monocrystalline silicon with high transmittance, and the best transmittance is above 95%. More efficient use of sunlight. Otherwise, in rainy weather, the charging in the daytime can not keep up with the power consumption in the evening, which results in intermittent operation of the lamps and affects the navigation safety.
(3) Most of the light source of solar beacon is led, which is a new generation of green light source with low power consumption and high brightness. Good led generally adopts imported chips (such as Taiwan Crystal), internal wiring is 99.99% gold wire, pin is pure copper silver or tin plating; poor lamp beads are generally more domestic chips, using silver wire or copper wire, pin is also iron tin plating. Although there is little difference in brightness, the light attenuation of good lamp beads is relatively small, and the brightness is still the same after two or three years; while the light attenuation of poor lamp beads is relatively large, and the brightness is obviously weakened in the later period.
ML50 series lithium battery solar energy integrated navigation beacon light produced by Hunan Yuansheng Electronics Co., Ltd. adopts 12V / 15ah quality lithium battery, with a warranty of three years and a endurance of 10 rainy days. It is mainly suitable for chimneys, towers, railways and other places without municipal power supply, with protection grade of IP68, effectively ensuring navigation safety.