一, how much energy do LED street lights save in the community
If the community only does the most basic renovations, like replacing the old high-pressure sodium, metal halide, or mercury lamps with LED street lights without improving the control system or lighting scheme, the energy-saving rate is usually between 50% and 60%. This kind of energy savings is mostly due to the fact that LEDs are more efficient at turning light into energy. In real-world engineering, for example, a 150W high-pressure sodium lamp only needs LED street lights of roughly 60W to achieve the same lighting standards. The most popular and easiest way for LED street lights to save energy in residential areas is to cut the power of one lamp by roughly 60%.
二,How much more energy-efficient can LED street lights in residential areas be with better lighting design
If you choose high-quality chips, high-efficiency driving power supplies, and a reasonable light distribution design all at once when replacing LED street lights to focus light on roads and pedestrian areas while cutting down on wasteful overflow light, the community's overall energy saving rate can usually go up to 60% to 65%. This energy saving comes from both using less electricity and making better use of the light. LED street lights can control the beam angle more precisely than regular street lights, which send a lot of light into the air and nearby areas. This means that each watt of electricity used creates a larger effective lighting area, which makes the system-level energy-saving effect even stronger.
三,After setting up the smart system, how much energy do the LED street lights in the neighbourhood save
In places where smart lighting control systems have been put in place, LED street lights can save more than 70% of energy, and certain projects can save up to 80%. Some common smart energy-saving strategies are dimming based on time, turning off power automatically at night, and lighting that uses radar or infrared to turn on. For example, in real life, many neighbourhoods will keep the brightness at 100% for the first half of the night and then lower it to 50% to 60% for the second half of the night. It can even be turned down to 30% power when there aren't many people walking by. This dimming method alone can save an extra 15% to 30% of energy, which is a significantly bigger savings than just changing out light fixtures.
四,Based on genuine technical data, the energy-saving rate for LED street lighting in residential areas is feasible
A lot of real-life examples show that a community that used 150W high-pressure sodium lamps can usually cut the total electricity use of a single lamp by 65% to 75% after replacing it with 60W LED street lamps and working with an intelligent dimming system. The energy-saving rate might be much higher if metal halide lights or mercury lamps were utilised at first. So, given the current state of technology, it is safe to say that the energy-saving rate range for residential LED street lights is 50%–70%, and for exceptional projects, it can be as high as 70%–80%. This number is not just a guess; it has been checked in a lot of real home lighting remodelling projects for a long time.
