The evolution of the humble ballpoint pen has reached a new pinnacle with the integration of advanced LED technology and laser pointers. For professionals in engineering, medicine, law enforcement, and corporate environments, carrying separate tools for writing, lighting, and presenting is no longer necessary. Olight has pioneered this space with the O'Pen series, offering high-quality illumination and writing instruments in a single, sleek aluminium body.
This guide analyzes the top contenders in the Olight penlight series for 2025, specifically focusing on the new 4-in-1 USB-C rechargeable penlight with green laser, the O'Pen 3, alongside the established O'Pen Pro and the innovative O'Pen Glow. We will explore their specifications, practical applications for work EDC (Everyday Carry), and why they make exceptional gifts.
Table of Contents
- The Ultimate Multitool: Open 3 Rechargeable 4-in-1 Penlight
- The Classic Professional: Open Pro Green Laser Beam Penlight
- The Night Writer: Open Glow Pen with Tip Light & Clip Light & Tail Laser
- Comparison: Open 3 vs Open Pro vs Open Glow
- Practical Applications for Work and EDC
- Why Olight Pens Are the Perfect Gift Idea
- Conclusion
- FAQ
The Ultimate Multitool: Open 3 Rechargeable 4-in-1 Penlight
The O'pen 3 Penlight represents the latest generation of multifunction writing tools. It is designed to be the definitive 4-in-1 USB-C rechargeable penlight with green laser solution for users who demand versatility without compromising on size.
Key Features and Specifications
The primary selling point of the O'Pen 3 is its four distinct functions housed within a single 120-lumen device:
- Neutral White Light: The LED on the pocket clip delivers a bright, neutral white beam ideal for inspections or lighting up a walkway.
- Green Laser Pointer: Integrated into the tail is a crisp green laser, perfect for presentations or pointing out objects on construction sites.
- Red Light: Unlike its predecessors, the O'Pen 3 includes a red light function. This is crucial for preserving night vision or serving as a low-profile signal light.
- Smooth Writing Experience: It utilises a high-quality bolt-action mechanism to deploy the ink cartridge.
Design and Charging
The body is constructed from durable aluminium alloy, ensuring it withstands the rigours of daily site work. A significant upgrade in this model is the charging mechanism. It functions as a USB-C rechargeable penlight where the USB-C port is hidden within the body, accessible by unscrewing the pen. This ensures the port remains free from dust and lint.
The Classic Professional: O'pen Pro Green Laser Beam Penlight
Before the 4-in-1 models arrived, the O'pen Pro Penlight set the standard for what a green laser presentation pen could be. It remains a top choice for executives and professionals who prioritize a slim profile and specific L-bolt action.
The L-Bolt Action Mechanism
The defining feature of the O'Pen Pro is the L-type bolt action. This singular switch controls the pen tip, the LED light, and the green laser. It is intuitive and allows for rapid deployment of the green laser presentation pen mode during meetings.
Lighting Performance
The O'Pen Pro moves the LED light to the clip, allowing the user to clip the pen to a pocket or notebook for hands-free illumination. It provides up to 120 lumens of white light, sufficient for checking pupils, inspecting engines, or navigating dark rooms. While it lacks the red light of the O'Pen 3, its streamlined 2-in-1 light and laser function appeals to minimalists.
The Night Writer: O'pen Glow Pen with Tip Light & Clip Light & Tail Laser
The O'pen Glow Penlight With 3 Lights takes a different approach to illumination. While other pens focus on being a flashlight first, the O'Pen Glow focuses on the writing experience in low-light conditions.
The Tip Light Innovation
The standout feature here is the LED ring at the very tip of the pen (the writing point). This illuminates the paper directly where the ink flows, allowing users to write in complete darkness without casting shadows from a clip-mounted light.
Charging Dock Convenience
Unlike the O'Pen 3 or Pro which use cables directly into the pen, the O'Pen Glow comes with a dedicated charging base. This makes it an excellent desk accessory. You simply drop the pen into the dock to ensure it is always charged. It still functions as a tactical pen light with red LED capabilities, as the laser is situated at the tail, but the primary focus is on the "Glow" tip and the convenient clip light.
Comparison: O'pen 3 vs O'pen Pro vs O'pen Glow
To help you decide which multifunction pen torch for work suits your needs, here is a technical comparison of the specifications.
| Feature | O'Pen 3 | O'Pen Pro | O'Pen Glow |
|---|---|---|---|
| Primary Function | 4-in-1 Multitool | Light + Laser Presenter | Night Writing Specialist |
| Light Sources | White (Clip), Red (Clip), Green Laser (Tail) | White (Clip), Green Laser (Tail) | White (Clip), White (Tip), Green Laser (Tail) |
| Max Output | 120 Lumens | 120 Lumens | 120 Lumens |
| Laser Type | Green | Green | Green |
| Red Light | Yes (Night Vision/Signal) | No | No |
| Tip Light | No | No | Yes (For writing) |
| Charging | Hidden USB-C (Unscrew body) | USB-C (Unscrew body) | Magnetic Charging Base |
| Switch Type | Bolt Action | L-Bolt Action | Bolt Action + Tail Switch |
Practical Applications for Work and EDC
For Engineers and Site Managers
The O'pen 3 Penlight is the superior choice here. The green laser is highly visible even in daylight for pointing out structural elements. The magnetic tail allows the pen to be attached to steel beams or machinery, and the tactical pen light with red LED mode is useful for preserving night vision during evening shifts or signalling in emergency situations.
For Medical Professionals
Doctors and nurses often require a penlight for pupil checks. The low mode on the O'Pen series is suitable for this. The ability to write prescriptions or notes in dim wards makes the O'pen Glow Penlight With 3 Lights particularly useful, as the tip light illuminates the chart without waking patients with a bright floodlight.
For Corporate Presenters
The O'pen Pro Penlight is the ideal green laser presentation pen. Its sleek profile fits perfectly in a suit pocket, and the L-bolt action is silent and professional. It seamlessly transitions from signing contracts to leading a boardroom presentation.
Why Olight Pens Are the Perfect Gift Idea
As we approach 2025, gifting functional, high-quality tech is a growing trend. The O'Pen series fits this criteria perfectly for several reasons:
- Premium Unboxing Experience: Olight products come in high-quality packaging that feels substantial and expensive.
- Universal Utility: Everyone uses a pen, and everyone needs a torch. Combining them into a multifunction pen torch for work ensures the gift will actually be used, not left in a drawer.
- Eco-Friendly: Being a USB-C rechargeable penlight means the recipient does not need to hunt for obscure button-cell batteries. This adds long-term value to the gift.
- Customisation: Many O'Pen models feature bodies that can be engraved, making them excellent corporate gifts or personal tokens of appreciation.
Conclusion
Choosing between the O'Pen 3, O'Pen Pro, and O'Pen Glow depends largely on the intended user's daily routine.
Choose the O'Pen 3 if you want the absolute maximum versatility. It is the best 4-in-1 USB-C rechargeable penlight with green laser available, offering white light, red light, laser, and a pen in one robust package.
Choose the O'Pen Pro if you prefer the classic L-bolt mechanism and need a streamlined tool for business and presentations.
Choose the O'Pen Glow if your primary use is writing in low-light environments or if you prefer a desk-dock charging solution.
Regardless of the choice, integrating an Olight pen into your Everyday Carry ensures you are always prepared to write, light, and point with precision.
FAQ
Can I replace the ink cartridges in the O'Pen series?
Yes, all O'Pen models utilize standard refills. Olight sells specific refills (RF-OL182X), but they are also compatible with standard Schmidt P950 pressurized refills, ensuring you can always find ink.
Is the green laser safe to use?
The lasers used in the O'Pen series (Class 1 or safe Class 3R, depending on the specific regional model) are designed for presentation and pointing. However, users should never shine the beam directly into their eyes, aircraft, or vehicles.
How long does the battery last on these pens?
Battery life varies by mode. On the lowest brightness setting (Moonlight or Low), the O'Pen series can last for several hours (up to 8-10 hours depending on the model). Using the laser or high beam continuously will drain the battery faster, typically in roughly 60 minutes.
What is the difference between the red light and the green laser on the O'Pen 3?
The green laser is a concentrated beam for pointing at a distance. The red light on the O'pen 3 Penlight is an LED floodlight, used for illumination that does not degrade night vision, not for pointing.
