Features
1. High speed response
    Response frequency fc : TYP. 12MHz
2. Intermediate beam angle and narrow beam angle
    GL550 half intensity angle : TYP. ± 22˚
    GL551 half intensity angle : TYP. ± 10˚
3. High output type optical output : TYP. 15mW

APPLICATIONs
1. Audio equipment
2. AV equipment