CAVN Rechargeable LED Pen Light with Pupil Gauge & Ruler | 10cm (4in) | White

• Rechargeable Design — This pen light is designed with a built-in rechargeable battery. We equipped with the newest type-C to USB charging cable and you can charge the pen light at any time via power bank, computer, etc. It will save your money to buy batteries repeatedly.
• Two Light Modes — This pen light can switch between white light and warm light modes according to your needs. The white light is suitable for checking nose, mouth, ears or as a flashlight for lighting, the warm light is suitable for checking eyes.
• Durable Material — CAVN pen lights are made of premium aluminum alloy material, making sure these pen lights durable and long-life using. It also comes with a pen cap to prevent damage caused by falling.
• 4CM-Ruler & Pupil Gauge — There are pupil gauge and a 4cm-ruler on the side of the penlight. It is very helpful for you to measure the pupil dilation and length on using these medical penlights.
• Convenient to Use — These reusable nursing pen lights have push-button on/off switches and pocket clip. You can easy to control it and put it in your uniform pocket. If your friends or families are nurses, doctors or nursing students, this pen light is also a good gift choice.

• Connect the included Type-C to USB cable to the penlight's charging port and a power source. Allow it to fully charge before first use, indicated by the charging light. — Charge the Pen Light
• Press the power button to turn on the light. Cycle through modes to select either the bright white light for general illumination or the warm light for eye examinations. — Select Light Mode
• Use the penlight for patient examinations. Utilize the integrated pupil gauge and 4cm ruler for accurate measurements as needed during your clinical tasks. — Perform Assessment
• When finished, turn off the light. Use the pocket clip to secure it to your uniform or pocket. Recharge as needed using the USB Type-C cable. — Store and Recharge

Typical situations where CAVN Rechargeable LED Pen Light with Pupil Gauge & Ruler | 10cm (4in) | White helps — illustrative scenarios, not customer reviews.