Energy-saving lights have already withdrawn from the stage of history. At present, almost all households are LED lights, but there are so many LED lights on the market. Then, follow the professional Suntechleds LED lighting experts to see how to correctly choose household LED lights.
The composition of household LED lights
LED lights are actually composed of three parts: drive, light source board, and heat sink.
First of all, let’s talk about the drive. Normal household LED lights generally choose non-isolated drive. This drive has a low cost, high efficiency, and good reliability. Even when the voltage fluctuates, the light can work normally without being affected. However, in the current market, in order to fight for the price, many companies will use resistance-capacitance step-down or linear power supplies to replace non-isolated power supplies. The resistance capacity and linearity of the two power supplies are poor in shock resistance. The surge voltage of a nearby thunderstorm is mostly bad, and it can only work at the set voltage. As long as the voltage fluctuates, the light will fluctuate, so you must check the input voltage range when purchasing.
Light source board
Secondly, we talk about the light source board. At present, most of the LED light sources are welded on the aluminum substrate. The quality of the light source is difficult to see with the naked eye, but it is not a problem to use it for a few years, but you can see the light on the package. The color temperature is generally less than 6000k. The color temperature is about 3000k, which is like the slightly yellowish sun that has just risen in the morning. I like a little whiter, usually 6000k is like the sun at noon. It is whiter but more dazzling. It is best to choose a light source of 4000k, which is more moderate. If it exceeds 6000k, the light is already bluish. There is a blue light hazard that means this, so don’t choose a color temperature above 6000k.
Finally, let’s talk about the heat sink. Since the LED light source generates heat when it is working, the LED will be damaged if the heat is not exported in time. Therefore, a heat sink is required. Generally, the bulbs on the market are plastic-clad aluminum heat sinks, which means you feel plastic. There is actually a layer of aluminum inside. The greater the power of the LED, the greater the heat. Generally, the heat sink has a maximum power limit, so when buying a light, don’t be greedy for high power. Generally, you should not buy an A60 with more than 10 watts. The life span will be discounted.
The brightness reference value of household LED lights
The light is not only a light source, but also an ornament. There are tens of millions of lights on the market, but we only admire dozens of them. Unfortunately, the space is limited. I hope I can show you more of the content of these LED lights, including how to use them and how to match them. When choosing household LED lights, the brightness of different areas of the home should also be considered. The brightness reference value of each area in the home takes the commonly used LED lighting as an example:
– Living room: about 1.7W is required for 1㎡.
– Kitchen: Approximately 1.7W for 1㎡.
– Dining table chandelier: about a light above 8W, if there is a soft light board, add 5W.
– Lights under the kitchen cabinets: operating tables above 1m and below 2m. If you use light strips or tubes, about 1m, about 5W power is enough, and more than two meters can be deduced by analogy.
– Bedroom: Compared with other rooms, the brightness requirement of the bedroom will be lower, about 1W for 1㎡.
– Bedside light: If you like to read in bed, then you need a 5W bedside light.
– Table light/floor light: 5~10W.
– Toilet: about 1.7W is needed for 1㎡.
The above calculation result is not accurate, but it is sufficient for all households. If you have higher requirements for brightness, you can increase the wattage by 30% on this basis. The above is an example of an LED light source. If your home uses energy-saving lights, please multiply the wattage by 2; if you use incandescent lights, please multiply the wattage by 6.
Finally, don’t be greedy for cheap when buying lights. You get what you pay for.