---
product_id: 558021807
title: "COSOOS 2 Rechargeable Pen Lights with Pupil Gauge & Ruler, Mini LED Penlights for Nurses Doctor, Warm/White Light with Clip, USB-C Rechargeable Penlight Flashlight Gift for Nursing Student"
brand: "cosoos"
price: "¥3159"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/558021807-cosoos-2-rechargeable-pen-lights-with-pupil-gauge-and-ruler
store_origin: JP
region: Japan
---

# 100 Lumen Brightness 4cm Ruler & Pupil Gauge USB-C Rechargeable COSOOS 2 Rechargeable Pen Lights with Pupil Gauge & Ruler, Mini LED Penlights for Nurses Doctor, Warm/White Light with Clip, USB-C Rechargeable Penlight Flashlight Gift for Nursing Student

**Brand:** cosoos
**Price:** ¥3159
**Availability:** ✅ In Stock

## Summary

> Light Up Your Practice! 💡

## Quick Answers

- **What is this?** COSOOS 2 Rechargeable Pen Lights with Pupil Gauge & Ruler, Mini LED Penlights for Nurses Doctor, Warm/White Light with Clip, USB-C Rechargeable Penlight Flashlight Gift for Nursing Student by cosoos
- **How much does it cost?** ¥3159 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/558021807-cosoos-2-rechargeable-pen-lights-with-pupil-gauge-and-ruler)

## Best For

- cosoos enthusiasts

## Why This Product

- Trusted cosoos brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **👜 Compact & Portable:** Lightweight design fits easily in your pocket.
- • **🔄 Eco-Friendly Charging:** Rechargeable via USB-C, saving you money and batteries.
- • **🔦 Illuminate with Style:** Two adjustable light modes for every situation.
- • **📏 Measure with Precision:** Built-in pupil gauge and ruler for quick assessments.
- • **🩺 Essential for Professionals:** Perfect for nurses, doctors, and med students.

## Overview

The COSOOS 2-Pack Rechargeable Pen Lights are essential tools for healthcare professionals, featuring adjustable light modes, a built-in pupil gauge, and a compact design. These durable, USB-C rechargeable penlights are perfect for quick assessments and everyday use, making them an ideal gift for nurses, doctors, and medical students.

## Description

COSOOS 2 Rechargeable Pen Lights with Pupil Gauge & Ruler, Mini LED Penlights for Nurses Doctor, Warm/White Light with Clip, USB-C Rechargeable Penlight Flashlight Gift for Nursing Student

## Features

- Gifts for Nurse & Doctors, 2-Pack Rechargeable Penlight with Clip: Save tons of battery. COSOOS little pen flashlights can be charged via included type-C to USB charging cable and your power bank, computer, etc. While charging, tiny blue indicator light will show up. It will disappear when fully charged
- Two Different Light Sources: Comes with a pen cap which stops it from accidentally turning on in your pocket and dying when you need it the most. Take off cap before using it and press its button on the top 3 times to switch between white light, warm yellow light and off. White light is bright and suitable for checking nose, mouth, ears or as a flashlight for lighting up dark room. And softer yellow warm light is suitable for checking eyes
- 5.3 in long & 0.6 oz Lightweight, Durable Material: COSOOS stylish pen lights with metal pocket clip weigh only 18 g / 0.6 oz and are made of premium aluminum alloy material, making sure these led pen flash lights durable and long-life using
- Pupil Dilation Scale & Small MM Scale: There are pupil gage and 4cm-ruler imprinted on the side of penlight which are very helpful for doctors or nurses to measure the pupil size and small mm scale for measuring wounds
- Compact & Convenient to Use: Reusable nursing pen lights flashlights are easy to use and can be placed in uniform pocket by its clips. Good gift choice for paramedic, nurses, doctors, pediatrician, pediatrics, resident, emergency technician or med school nursing students

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Special Feature | 4cm Ruler & Pupil Gage, Adjustable Light Modes, With Pen Clip, Non Slip Grip, USB-C Rechargeable, Durable, Lightweight, Portable |
| Power Source | USB-C Rechargeable |
| Light Source Type | LED |
| Material | Stainless Steel |
| Included Components | 2 Short 29.5cm/11.6in USB-A to USB-C Cables, 2 Rechargeable Pen Lights |
| Product Dimensions | 5.31"D x 0.51"W x 0.51"H |
| Battery Cell Composition | Lithium Polymer |
| Item Weight | 0.61 Ounces |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Water Resistance Level | Water Resistant |
| Brand | COSOOS |
| Brightness | 100 Lumen |
| Battery Description | Lithium-Ion |
| Style | Flashlight for paramedic, pediatrician, pediatrics, resident,emergency technician,med school |
| Recommended Uses For Product | Reading, Indoor, Camping |
| Manufacturer | COSOOS |
| Size | Pen Flashlight |
| Part Number | Chargeable Pen Lights |
| Item Weight | 0.61 ounces |
| Country of Origin | China |
| Item model number | 2 pack penlights |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Item Package Quantity | 2 |
| Shape | Pen |
| Specific Uses | Flashlight for paramedic, nurses, doctors, pediatrician, pediatrics, resident, emergency medical technician or med school nursing students. |
| Special Features | 4cm Ruler & Pupil Gage, Adjustable Light Modes, With Pen Clip, Non Slip Grip, USB-C Rechargeable, Durable, Lightweight, Portable |
| Light Direction | Adjustable |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Bulb Features | 2-way switching, Needs recycling, Shock and vibration resistant |

## Product Details

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- **Power Source:** USB-C Rechargeable
- **Light Source Type:** LED
- **Material:** Stainless Steel
- **Included Components:** 2 Short 29.5cm/11.6in USB-A to USB-C Cables, 2 Rechargeable Pen Lights

## Images

![COSOOS 2 Rechargeable Pen Lights with Pupil Gauge & Ruler, Mini LED Penlights for Nurses Doctor, Warm/White Light with Clip, USB-C Rechargeable Penlight Flashlight Gift for Nursing Student - Image 1](https://m.media-amazon.com/images/I/61IKX2mesVL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How can i buy extra cosoos batteries the same ones that came with my flashlight \? Do they sell just the batteries?**
A: Dear Customer, 

Thanks for your question. 
The same rechargeable battery is just out of stock.
Could you contact us at service@cosoos.com and we will let you know when it is available?

All our COSOOS products come with 1 year warranty.(Battery chargers come with 3 year warranty)
If you meet with any product problem,please contact us by service@cosoos.com and we will send you a new one at once.

Best regards, 
COSOOS Sales Team
service@cosoos.com

**Q: what are the measurements of the battery?**
A: Dear Customer, 

The rechargeable battery’s diameter is18mm and length is 65mm.
Our flashlight also support aaa battery and aaa battery is not included.

All our COSOOS products come with 1 year warranty, so please do not worry about quality.
We also sell soundbar with subwoofer, colorful led strip lights(app & remote control), magnetic wireless charger for iphone 12, disco ball light, rechargeable battery charger, BYD Digital Infrared Forehead Thermometer with FDA & CE certificate... If you need, contact us at service@cosoos.com and we will send you the link.

Btw, since the virus is still severe around the world, please do not forget to wear a medical mask to protect yourself before going out.
Be safe as well wherever you are!

Hope to hear from you.
Best regards, 
COSOOS Sales Team
service@cosoos.com

**Q: On full zoom how far will it light up an outside area?  I need a bright light at 100'+**
A: Will not be satisfactory for 100 feet.

**Q: Does this company provide a larger flashlight  Are there flashlights all pocket size IAM  looking for maybe a little lrger maybe the length of 2lights**
A: I don't know but this little light has a powerful beam

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-25*