Cheap zoomable Li-Ion LED headlamp teardown

Cheap LED headlamps - test, comparison, teardown, modifications

Smallest 4K 120fps Camera Possible

BLUblox red and yellow LED lamps (circadian blue free)

Fenix HM70R headlamp test + real Li-Ion capacity measured

Fixing a big Li-ion charger power supply

Driving DC Motors with Microcontrollers

8.5W Osram LED teardown & analysis

Building my own "Dubai Lamps"

12v 90Ah Lifepo4 battery build, For SUV car using 24cell 32140 15Ah From old car battery

How LED Works - Unravel the Mysteries of How LEDs Work!

Dangerous USB phone chargers 7 (QC 3.0)

9 LED headlight Elfeland teardown.

Turbo Fan Dusters are getting out of hand

"RGB" LED torch from Lidl - teardown & disabling SOS

24V 10A 240W power supply - test, failure, teardown and fix

Building DIY LED lights

How to Convert 12v 7Ah Lead Acid Battery Into 12v 16.8Ah Li-Ion Battery Pack and 50400mAh Power Bank

72v 45Ah Lifepo4 battery build for E-bike - 66 Cell 32140 Battery, JK BMS 100A

Unlock the Potential of Your Old Hard Drives: Build a Drone Engine!

Questionable 2-in-1 USB charger - test, schematic & modifications