# Ledlenser P4 Re-Engineered Pen Light, Pocket Flashlight, IP54, 142 mm

**Brand:** Ledlenser  
**ASIN:** [B0FN6FVL2F](https://www.amazon.com/dp/B0FN6FVL2F)  
**SKU:** Ledlenser 503098  
**Category:** Handheld Flashlights  

> Inspection Flashlight, LED Penlight, 23h Low Runtime, 2m Drop Tested, IP54 Dust & Splash, 90m Beam, P4 Pen Light

## Overview

The Ledlenser P4 Pen Light is a meticulously engineered inspection flashlight, perfect for those who demand precision and reliability in compact form. Made from durable, sustainable 75% recycled aluminium, this LED pen light with an IP54 rating resists dust and splashes. Its Advanced Focus System allows for precision lighting control, seamlessly transitioning between three brightness levels - 180 lumens for high power, 80 lumens for mid-range and 20 lumens for low power. Ideal for technicians, inspectors and outdoor enthusiasts, this pen light features a convenient shirt-pocket clip. Weighing just 60 g and measuring 142 mm, it is suited to navigating dark spaces such as engine compartments or outdoor trails. With its 2-metre drop-test durability, the P4 is built to withstand demanding environments. Its 90 m beam distance ensures you can see clearly in the dark.

## Key features

- Precision Lighting Power: The Ledlenser P4 Pen Light provides precision with its Advanced Focus System. Seamlessly transition between wide flood and a focused 90 m spot beam, perfect for technicians and inspectors
- Enduring Performance: Benefit from the longest-lasting pen flashlight in the P-Series, suitable for detailed inspections and professional duties
- Compact & Durable Design: Weighing only 60 g, this LED pen flashlight features a convenient shirt-pocket clip. Its 142 mm form factor and 2 m drop-test durability ensure dependability
- Eco-Friendly Engineering: The Ledlenser P4 Pen Light is constructed from 75% recycled aluminium. With an IP54 rating, it resists dust and splashes
- Versatile Everyday Use: Designed for versatility, the P4 Pen Light fits comfortably in a shirt or trouser pocket, ideal for professional use where precision lighting is needed

## Specifications

| Attribute | Value |
| --- | --- |
| Color | Black |
| Style | P4 - Re-Engineered |
| Material | Aluminum |
| Model Name | P4 - Re-Engineered |
| Special Feature | Durable |
| Power Source Type | Battery Powered |
| Included Components | Flashlight |
| Size | 142 mm |
| Item Shape | Pen |
| Mounting Type | Clip |

## Verified product facts

_Each fact is extracted from the merchant's own listing copy and carries the confidence level and supporting field(s) below._

| Fact | Confidence | Evidence |
| --- | --- | --- |
| Advanced Focus System with flood-to-spot switching | high | Title, bullet 1 and description |
| 60 g weight | high | Bullet 3 and description |
| 142 mm length | high | Title, bullet 3, description and size attribute |
| IP54 dust and splash resistance | high | Title, bullet 4 and description |
| 90 m beam distance | medium_high | Item highlights, bullet 1 and description |
| 180 lm maximum output | medium_high | Description (high-power brightness level) |
| shirt-pocket clip | medium | Bullet 3, description and mounting_type attribute |
| 2 m drop-test durability | medium | Item highlights, bullet 3 and description |
| 75% recycled aluminum construction | medium | Bullet 4 and description |
| up to 23-hour runtime on low setting | low | Item highlights ('23h Low Runtime'); NOTE: Autopilot cited the description, which does not state a runtime - evidence repointed to the surviving source |

## Why buyers choose it

**1. Precise, adaptable lighting for inspection tasks**

For adults buying a pen light for precise close-up work, the Advanced Focus System switches between wide flood and focused spot.

_Unlike most pen lights, which use a fixed beam, this one transitions from flood to focused spot._

**2. Extended use without frequent battery changes**

For adults who want fewer battery swaps during long shifts, the low setting lasts up to 23 hours.

_Unlike many compact pen lights, which run out sooner, this one lasts up to 23 hours on low._

**3. Keeps working after accidental drops**

For adults who need a pocket light that can take jobsite knocks, 2 m drop-test durability helps it survive drops.

_Unlike most pen lights, which are not drop-rated to this level, this one is tested to 2 m._

**4. More reliable in messy or wet environments**

For adults using a pen light in dusty or damp spaces, IP54 dust and splash resistance helps it keep working.

_Unlike many basic pen lights lacking formal ingress protection, this one is IP54-rated._

**5. Extends usable light farther into dark spaces**

For adults who need a pocket light that reaches farther, the 90 m beam distance illuminates distant spots.

_Unlike most pen lights intended for short-range lighting, this one reaches up to 90 m._

**6. More eco-conscious metal build**

For adults who want a metal pen light with recycled content, 75% recycled aluminium offers a more sustainable build.

_Unlike typical aluminium pen lights that don't specify recycled content, this one uses 75%._

## Search terms shoppers use

_Top 10 of 64 terms in the bank. only restriction=allow_all published; brand/banned withheld_

| Term | Rank | Monthly search volume |
| --- | --- | --- |
| ledlens flash light | 13 | 1 |
| flashlight | 22 | — |
| flash light | 28 | — |
| keychain flashlight | 30 | — |
| pocket flashlight | 31 | — |
| mini flashlight | 32 | — |
| pen light | 34 | — |
| tactical flashlight | 35 | — |
| flashlights high lumens | 36 | — |
| tactical pen | 37 | — |

## Where to buy

- [Amazon (US)](https://www.amazon.com/dp/B0FN6FVL2F)
- [P4 Pen Flashlight](https://www.ledlenserusa.com/products/p4)

_Price and availability are not included in this document. Check the retailer link for current offers._

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_Generated 2026-08-03 · agentsite/1.25 · No review-derived content (see tier_policy in the JSON companion)._