When many people are selling solar street lights, they shout: how about this 100W solar street light, how about the 200W one? As someone who has been in this industry for many years, my heart is broken. These selling buddies, do you have any misunderstandings about this power unit “watt”? Therefore, I will give you a more detailed explanation here. I hope that after reading it, you can fundamentally understand these problems, and avoid the pits dug by the sellers when purchasing solar lamps.
Let’s first analyze the working principle of solar lights. Solar lights are a kind of lamps that use solar panels to convert light energy into electrical energy, store the electrical energy in batteries, and then supply power to LED light sources through batteries to provide lighting. The reason seems to be very simple, but solar lamps involve a series of electronic original devices such as photovoltaic panels, controllers, batteries, LEDs, etc. The depth of water is only clear to those in the industry, so I won’t talk about it too much today. Only discuss the wattage of solar lamps.
Since the solar light is battery powered, it should belong to the same type of product as our common electric vehicles, mobile phones, laptops, and flashlights. So the question is, why do cell phone sellers and flashlight sellers never tell you how many watts his mobile phone is and how many watts the flashlight is?
Because they don’t know either! why? Because no one ever asks that. Have you ever seen the wattage of Apple’s mobile phone at the press conference? Have you ever seen Tesla say how many watts his electric car is? They’ll just tell you, what’s the battery capacity of my phone? How long can the battery last under the condition of continuous watching movies or playing games, or how long can it be on standby, etc. Electric car sellers will tell you that my electric car can run 400 kilometers and other parameters, but they will never say how many watts my product has. So why is it that when it comes to solar lamps, it becomes a lamp that is measured in watts? In the end, it’s a matter of habit. From the initial incandescent lamps to energy-saving lamps to later LED lamps, we measure the brightness and price of a lamp in watts, and these lamps are connected to 110V or 220V grid voltage, we call it It is called “city electricity”. However, the products with the same appearance suddenly changed the way of energy supply. For a while, it was difficult for many people to accept other units to measure the original products, which led to confusion in the overall perception. Moreover, there is no relevant national standard in the solar lighting industry at present, so each manufacturer is basically independent, and each has its own standard method.
When buying a solar lamp, in addition to looking at the so-called “power”, you must look at the parameters of other accessories of the manufacturer, such as the power of the solar panel (this determines whether your solar lamp can be fully charged, the greater the power of the solar panel, the higher the price The more expensive), battery capacity (this determines how long your solar lamp can work, the larger the battery capacity, the higher the cost), the brand and quantity of LED light source chips (this determines the brightness of the solar lamp), the system controller ( This determines the entire lamp life of the solar lamp). Do you understand? If you don’t understand, you can come to me.
Well, I will share it with you today. If you want to know more about solar lighting, breaking news, shady stories, or want to buy solar lights without being deceived, you can continue to follow me and share more interesting warm tips for you.
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Post time: Jul-09-2022