One special feature at the LED energy (power direct, indirect energy consumption), the second is almost no ionizing radiation, three improved space utilization.
LED的特色之处一是节能（直接功耗，间接耗能），二是基本无电离辐射，三提高空间利用率。
2
The displacement damage effects due to Non-ionizing Energy Loss (NIEL) is one reason of device-malfunction in Space.