Uploaded May 2026 | Updated September 2026, 2 weeks ago
Before you buy a cheap USB bike light, see what's inside. We do a full internal teardown and inspection to check battery quality and real durability for your safety.
No upgrades — just a clean technical check of what you actually get inside.
We examine the soldering, aluminum heatsink, and the built-in 18650 battery to understand how durable and safe this light is for everyday riding.
📌 If you plan to choose a bike light later — save this video.
⏱ Step-by-step:
0:00 Unboxing and specs
0:49 Light modes and sensor test
1:30 Full teardown
2:08 18650 battery inspection
2:40 PCB and heatsink check
3:53 Mount durability
4:15 USB charging test
4:55 Night test and verdict
🔍 Key Findings:
• Standard 18650 battery (non-modified)
• Basic aluminum heatsink
• Simple internal design
• Entry-level build quality
⚙️ Practical Use:
Useful for commuters and DIY users who want to understand what’s inside before buying.
🛠 Tools & Materials:
LED Bike Light:
https://s.click.aliexpress.com/e/_c3Jy1Twr
Bought with my own money. Not sponsored.
▶ Watch next:
• LED Bicycle Headlight: youtu.be/Jyipl92CRuk
• Digital Speedometer Install: youtu.be/iltdILvTFAg
• 18650 Battery Testing Guide: youtu.be/mURAr0wHkss
#bikelights #teardown #18650battery #bicyclerepair #diy #lifekaki
Before you buy a cheap USB bike light, see what's inside. We do a full internal teardown and inspection to check battery quality and real durability for your safety.
No upgrades — just a clean technical check of what you actually get inside.
We examine the soldering, aluminum heatsink, and the built-in 18650 battery to understand how durable and safe this light is for everyday riding.
📌 If you plan to choose a bike light later — save this video.
⏱ Step-by-step:
0:00 Unboxing and specs
0:49 Light modes and sensor test
1:30 Full teardown
2:08 18650 battery inspection
2:40 PCB and heatsink check
3:53 Mount durability
4:15 USB charging test
4:55 Night test and verdict
🔍 Key Findings:
• Standard 18650 battery (non-modified)
• Basic aluminum heatsink
• Simple internal design
• Entry-level build quality
⚙️ Practical Use:
Useful for commuters and DIY users who want to understand what’s inside before buying.
🛠 Tools & Materials:
LED Bike Light:
https://s.click.aliexpress.com/e/_c3Jy1Twr
Bought with my own money. Not sponsored.
▶ Watch next:
• LED Bicycle Headlight: youtu.be/Jyipl92CRuk
• Digital Speedometer Install: youtu.be/iltdILvTFAg
• 18650 Battery Testing Guide: youtu.be/mURAr0wHkss
#bikelights #teardown #18650battery #bicyclerepair #diy #lifekaki
