Nacht?l

German-Made Rechargeable Clip-On Light

【Versatile Use in Various Situations】
Beyond use as a reading light, it can be attached to hat brims, clothing, etc., to illuminate your work area during jogging, DIY, and other activities, functioning as a work light. When attached to the included headband, it can be used as a headlamp.

【Overcomes the Weaknesses of Neck Lights】
Neck lights worn around the neck tend to shift their light direction with even slight body movements or posture changes. This clip-on light, however, fixes to glasses or similar items, maintaining a constant light direction for stress-free reading while lying down.

【Stylish Design】
This stylish and compact clip-on light is unobtrusive when worn. Main unit dimensions: 5cm (width) x 2cm (height at longest point). Accessories: Storage case, USB cable, headband. Maximum continuous lighting time: Approx. 3 hours. Charging time: Approx. 90 minutes.

It's ultra-lightweight at 8g, so you won't feel any burden even when attached to glasses. Fine angle adjustments are also smooth.
It has only been used once for a short period, so the continuous usage time has not been confirmed.
Selling because it did not suit my intended use.