Amber Book Light, Rechargeable Clip-On Blue Light Blocking LED Reading Light,...

The problem with blue spectrum light is that it is especially effective at signaling the body to wake up, be alert, and stay awake. In the evenings, particularly after the sun sets, we need to limit our exposure to blue light.

Condition: New · Seller: fa_6891 · 100.0% positive · 33 ratings

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