Selecting LED street light products for outdoor lighting applications involves a series of considerations and trade-offs。 These include：
Luminous efficiency （wattage to lumens）： How many lumens is produced for each watt of electrical energy input？ More importantly， the lumens from the light source meet the task requirements （"fixed lumens" and "lamp bead lumens"）
Lumen output： How much light will be generated relative to the amount of light required for a specific task？ When replacing existing luminaires， it is important to use only the required lighting level and not to use unnecessary brightness increases。
Correlated color temperature （CCT）： Does the light source have "warm" or "cool" quality？
Color rendering index （CRI）： How does light accurately present color to the human eye？ Higher CRI is not required in all cases。 Relative to the lighting application in question， the need for good color reproduction should be considered。
Adaptive control integration： Do lighting devices use adaptive controls such as dimmers， timers and/or motion sensors？ These controls are the future trend in the field of outdoor lighting， which can save more energy， improve the efficiency of light sources and improve the performance of visual tasks。 It is important that in the design process of adopting a new lighting device， even if adaptive control is not implemented immediately， it must have the ability to use adaptive control。
Heat dissipation： Is the lamp body designed to dissipate heat sufficiently？ Since the efficiency of LEDs will decrease as the operating temperature increases， it is important to control the heat emitted by LED lights in a warm climate。
Lumen depreciation： how resistant is a lamp to loss of efficiency over time？ Manufacturers often refer to "L70"， which is the expected use time before the bulb reaches 70% of its initial light output。
Closely related to all these factors is the cost： what is the cost of the LED replacement solution？ The price of commercial LED lighting products continues to fall， and the capital cost recovery time for the installation of new LED street lamps， once it reaches 10 years or more， is now usually less than 5 years， and continues to decline。 As implementation barriers decrease， LEDs have become the preferred lighting technology in new outdoor installations and existing fail-over installations。
No matter what you think about LED street lights， you can be sure of one thing： their brightness is constantly improving。 What is your opinion on the rise of LED street lights？ Leave your question below， or leave us a message！
