IP防水規格完全解説|防水懐中電灯の選び方とAestiquoおすすめモデル比較

Complete Explanation of IP Waterproof Standards|How to Choose a Waterproof Flashlight and Comparison of Aestiquo's Recommended Models

Aiden Tsang
💧 While "waterproof" is a single term, IPX4 and IPX7 are completely different. To avoid purchasing a flashlight with the wrong specifications, always check the IP rating before buying.

What is the IP Rating? Basic Knowledge

The IP (Ingress Protection) rating is an international standard (IEC 60529) that indicates the degree of protection of electrical equipment against dust and water. The "IP○○" number consists of two digits, where the first digit indicates dust protection and the second digit indicates water protection. The "X" in "IPX○", commonly seen in flashlights, means that the dust protection rating has not been evaluated.

Differences in Water Protection Ratings (IPX4 to IPX8)

IPX4

Splash-proof
Withstands splashing water from any direction

IPX5

Jet-proof
Withstands water jets from any direction

IPX6

Powerful jet-proof
Withstands powerful water jets

IPX7

Submersible
Withstands submersion in 1m of water for 30 minutes

IP Rating Protection Content Specific Situation Suitable Use
IPX4 Splashing water Light rain, sweat, water drips Daily use, light rainy weather
IPX5 Water jets Shower-like water flow Rainy weather, waterside, car wash
IPX6 Powerful water jets Strong water flow, splashing waves Outdoor, seaside, heavy rain
IPX7 Submersion (1m/30min) OK if dropped in water River, sea, dense fog, diving
IPX8 Submersion (1m+) Can be used in deep water Diving, underwater work
⚠️ Note: IP ratings are test values using "fresh water." Internal damage caused by seawater, river water, detergents, sand, etc., is not covered. If using near the sea or rivers, we recommend choosing a higher rating.

Dust Protection Ratings (First Digit of IP)

Rating Protection Content Specifics
IP5X Dust protected Dust ingress is not completely prevented, but it is limited to a level that does not interfere with operation.
IP6X Dust-tight Completely prevents dust ingress. Suitable for outdoor and work environments.

If a flashlight is labeled "IP56", it means it is dust-protected (IP6X) and powerful jet-proof (IPX6). This is an optimal rating for outdoor and work use.

Recommended Waterproof Ratings by Use Case

🏕️ Camping / Hiking

IPX6 or higher recommended. There is a possibility of exposure to powerful water, such as rain, streams, or splashing waves. With IPX7, you can rest assured even if it's accidentally dropped in water.

🎪 Disaster Prevention / Power Outages

IPX4 to IPX6 is sufficient. As it's mainly for indoor use, a high waterproof rating is not necessary, but IPX6 is safer considering rain during evacuation.

🎣 Night Fishing

IPX6 or higher is essential. Splashing waves, rain, and operation with wet hands are common. IPX7 is ideal due to the risk of accidentally dropping it in water.

🚧 Work Sites / Construction Sites

IP56 or higher recommended. Dust protection (IP6X) is also important in environments exposed to dust, dirt, and water.

🏠 Daily Use / Power Outage Preparedness

IPX4 or higher is sufficient. For mainly indoor use, a minimum of IPX4 is enough. For more peace of mind, choose IPX6.

Aestiquo Waterproof Flashlight Model Comparison

Model Waterproof Rating Durability Brightness Recommended Use
M19 IP56 2M impact resistance 800lm Disaster prevention, daily use, hiking
M26 IPX6 2M impact resistance 5000lm Outdoor, work, night fishing
M35 IPX6 2M impact resistance 16000lm Professional use, ultra-high brightness, large-scale work

📌 Aestiquo M19 (IP56 Waterproof, Disaster Prevention, Small Daily Use)

IP56 waterproof and dustproof, 2M impact resistance, 3000mAh large capacity, Type-C charging compatible. A balanced model ideal for disaster prevention, hiking, and daily use.

View Product Page →

📌 Aestiquo M26 (IPX6 Waterproof, 5000mAh Long-lasting, Professional Use)

IPX6 powerful jet-proof, 5000mAh large capacity, 2M impact resistance, Type-C charging. A high-brightness model ideal for outdoor, night fishing, and work use.

View Product Page →
🔦 View Aestiquo Flashlight Lineup

Tips for Extending the Lifespan of Your Waterproof Flashlight

  • Wipe off moisture after use: Remaining moisture inside can cause rust.
  • Always close the charging port cover: Water intrusion often occurs through the charging port.
  • Rinse with fresh water after immersion in seawater/river water: Salt and mud left inside can cause damage.
  • IP ratings are consumables: Waterproof performance gradually decreases due to aging, drops, and wear of the charging port.

Frequently Asked Questions (FAQ)

What is the difference between IPX6 and IP56?
IPX6 only evaluates water protection (dust protection is not evaluated). IP56 meets both dust protection rating 5 (dust protected) and water protection rating 6 (powerful jet-proof). For outdoor and work use, dust protection is also important, so IP56 offers more peace of mind.
Can an IPX7 flashlight be used underwater?
IPX7 is a standard that withstands submersion up to 1m for 30 minutes. While not designed for underwater operation, it can handle accidental drops or use in shallow water.
What IP rating is needed for use in the rain?
IPX4 is sufficient for light rain. For use in heavy rain or strong winds, we recommend IPX6 or higher, which can withstand powerful water jets. For outdoor activities, choose IPX6 or higher for peace of mind.
Is it okay to use a waterproof flashlight in seawater?
IP rating tests are conducted with fresh water. Seawater contains salt, which can increase the risk of internal damage even with the same IP rating. Always rinse with fresh water after using near the sea or in seawater.
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