cold-light source

例句：

1. 1. The new LED light bulb is much more energy efficient than the old incandescent bulb.
   这款新型LED灯泡比旧的白炽灯更节能。
2. 2. The research team used a cold-light source to study the effects of light on sleep patterns.
   研究小组使用冷光源来研究光对睡眠模式的影响。
3. 3. The new technology uses a cold-light source to produce high-quality images.
   这项新技术使用冷光源来产生高质量的图像。