Where is the limit of our eyes?Unit of measure of the brightness or intensity of the light is lumens (LM). For example, mostly of the artificial light intensity is 400 to 600 lumens in indoor situation. But for sunny day and outside, the br...英国华人论坛
Everyone knows that there are manyreasons why having a flashlight is vitally important. However, many people outthere think that all flashlights are the same and that they can just randomlypick one out that they like or is the least expensiv...英国华人论坛
It is a common fact that having high lumensflashlights on you can be highly important in life, such as when there is anemergency and power is out. When you are looking for the right high lumensflashlights, there are a few things that you sho...英国华人论坛