特征featrues mechanically and spectrally matchend to the phototransistor 发射接受管 ROHS compliant 通过ROHS认证
外型：8MM圆柱体，下沿带边 Appearance: 10MM cylinder, along with edge 特点：角度适中，光斑大,使用寿命长 features: moderate point of view, the large facular recommended a long life: 推荐使用范围：装饰，白色可用于矿灯 decorations, a white miner's lamp can be used
