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Two failed LED bulbs for teardown to determine the cause
Two failed LED bulbs for teardown to determine the cause
Two failed LED bulbs for teardown to determine the cause

Two failed LED bulbs for teardown to determine the cause - JohnAudioTech

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I enjoy electronics, building DIY projects and repairing things. Most videos will be electronics related, but I will toss in something random here or there. Enjoy!

Video description
These are LED bulbs number 3 and 4 in my failed LED bulb teardown series. Initially one of the bulbs would light normally for two seconds and then go out (first one checked). Watch and find out what failed inside the bulb.
The shocking truth about cheap LED "corn cob" lamps

NOTE: CE does NOT mean China Export, it's just a mis-spaced CE logo (just like the one on the back of an Xbox 360). Comments mentioning China Export will be marked as spam automatically, because it's horseshit. Based on feedback comments on my earlier video and a request from the folks at, this is a shorter test on a range of "corn cob" LED lamps available on eBay and Amazon. If you're thinking of buying cheap LED lamps, whether it be online or from the local market, this video is for you! Of the six "corn cob" style LED lamps tested...

Philips LED Lamp 9.5W Teardown

A Philips LED Lamp which stopped working is dismantled to see what is inside. 9.5W, 220-240V. Warm white 2700K. The LEDs are 24 individual surface mount items arranged in series. These still work, the failure is in the power supply which unfortunately is potted in resin. Case is made from thick metal with a plastic coating over it. This was purchased in 2013, and has been used for 6-7 hours a day, probably about 5000 hours in total.

Dollar Tree $1 Greenlite LED Bulb 9w (60w) Review and teardown

Review and teardown of the latest Dollar Tree $1 Greenlite LED bulb. This bulb is dimmable, uses less than 9 watts and produces 800 lumens. It is also approved to use in an enclosed fixtures as well! See my other Dollar Tree LED bulb teardowns here:

Light Bulbs | LED vs. Incandescent

Why are LEDs so much more efficient than incandescent light bulbs? Do LEDs have disadvantages? These are some of the questions I answer in this video about light bulbs. I also test the claimed wattage and find some anomalies... Full music credit: Neo Western - Kevin MacLeod ( Licensed under Creative Commons: By Attribution 3.0 License ISRC: USUAN1100615 Lightless Dawn - Kevin MacLeod ( Licensed under Creative Commons: By Attribution 3.0 License ISRC: USUAN1100655 Easy Lemon - Kevin MacLeod ( Licensed under Creative Commons: By Attribution 3.0 License ISRC: USUAN1200076 Pop:Club - Gerardo Garcia Jr.

Ebay $1.50 Filament LED lightbulb teardown (2W)

Teardown of a filament LED lightbulb from Ebay for $1.50 including shipping. Rated 220V 50Hz, the nominal power is 2W, real power is cca 1.6W, it has a E14 screw base. It is quite bright and looks nice, but there's no fuse in it. There's also no filter capacitor, so it has a lot of 100Hz flicker (not visible to the human eye unless you move it fast). It has a capacitor dropper in it with a 330nF capacitor, 1M discharge resistor and 1k inrush resistor. The 330nF multi layer ceramic capacitor looks quite small for the mains voltage. You can...

How to easily convert fluorescent Lights to LED – Conversions Tutorial - Easy Ways to Save Money

How to easily convert fluorescent Lights to LED – Conversions Tutorial - Easy Ways to Save Money Visit us at Replacing your fluorescent tube bulbs with LED is an easy project that can save you money on energy costs as well as saving you the inevitable time and expense of replacing the electronic ballasts in fluorescent light fixtures. You can calculate your potential savings using this helpful link: Chapter Links 00:41 Tools and Materials Needed 01:36 Steps for Converting to LED 07:44 Putting Everything Back Together 09:29 Important Tips for Choosing the Correct LED Tube #ChangingFluorescentTubestoLEDs #CanyoureplacefluorescenttubeswithLEDs #Whatisthedifferencebetweent8andt12fluorescentlightbulbs #HowdoIrewireatwobulbfluorescentlightforLEDbulbs #Areledsmoreefficientthanfluorescent #HowefficientareLEDlightbulbs #FluorescenttoLEDConversionEASYDIYInstructions #ConvertafluorescenttubefixturetoLED #ChangingFluorescentTubestoLEDs #WaystoConvertYourFluorescentLightFixturestoLED #FluorescenttoLEDConversion Subscribe For More How-To Videos and DIY Tips! Connect with Toolbox DIY! Twitter ►...

Dr. Mercola and Dr. Wunsch on the Dangers of LED Lights Natural health expert and founder Dr. Joseph Mercola interviews Dr. Alexander Wunsch about the hidden dangers of light-emitting diode (LED) lighting.

LED Bulb Repair in Hindi - How to repair LED Bulb at Home!!

LED Bulb Repair in Hindi - How to repair LED Bulb at Home!! LED Bulbs are extreamly power efficent and they offers great lumines intensity over conventional light sources but often they becomes faulty and stops working. In this video, we have outlined a detailed process to detect and repair LED bulbs. There are some very simple set of steps which are required to repair LED Bulbs. The best part of this tutorial is that you need not to be engineer or tech savey. if you have courage and passion, then you can definitely repair LED bulbs yourself from the comfort of...

Test and analysis of unusual (dead) LED lamp.

The thing that makes this LED lamp odd is that the current regulation is physically built into one of the LEDs. Given that the lamp was running at around 9W of power it's almost inevitable that one of the LEDs or its bond failed on each circuit.

Inside a very clever LED headlight lamp.

This started off as a simple autopsy of a faulty lamp and turned into something so much more. It's a very clever design that makes the circuit very universal. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.

CHEAP vs. EXPENSIVE: LED Pod Lights (Unboxing)

Most expensive LED lights: Middle of the road LED lights: Cheapest LED lights: As we upgrade our LED lighting for our backhoe, we wanted to see for ourselves if there was a difference in LED lights at various price points. Were expensive LEDs worth the money for such a critical tool on our property, or should we stick with cheap LED lights made in China? We hope to torture test these lights, but for now, enjoy this unboxing where we share our immediate observations. ENJOY THIS VIDEO? SUPPORT US WITHOUT PAYING A DIME! It takes us 40+ hours a week to document...

Extra long LED filament lamp teardown.

Another new twist with LED filaments. This style is designed to emulate traditional retro filament lamps with a very long LED filament that emits a very golden light. If you enjoy this channel you can help support it with a dollar at

Top 3 Awesome Life Hacks for Light Bulb

3 incredible Life hacks. We regularly uploads exciting videos like this , Suscribe us For More Videos - You Can also Watch Life Hacks for Balloon - Pen Drive life hack - Hack any FingerPrint - 3 Smartphone Life Hacks - ♪ TRACK : X-Change - Going Loco (Original Mix) •Support X-Change: Download:

Dollar Tree $1 LEDlife 6.5 watt LED Bulb review and teardown (40 watt equiv)

See my other Dollar Tree LED bulb teardowns here: @bigclive always finds cool LED bulbs at Poundland in the UK an I finally found something similar in the US at Dollartreet in Portland. A $1 light bulb which comes out to 66 pence! Whoa! Anyway, I took it apart and as you can see here it's not a piece of crap at all. A very nice 40 watt LED bulb.

LED Basics

A tutorial on the basics of using LEDs (light emitting diodes). Polarity, forward voltage and current are discussed. 300 LEDs for $13: 500 resistors for $12: Adjustable power supply: Previous video on volts: Next video on resistors: Website: Twitter: Facebook:

Unusual failure of LED Filament bulb

I purchased an 8W LED Filament bulb on eBay, and after a week of use (~50 hours) it experienced a very unusual failure. One of the LED filaments "shattered", perhaps due to overheating or power surge, explanations would be well appreciated but I've never seen this failure before. It's a 230V bulb and had a noticeable flicker when it ran meaning it probably uses a capacitive dropper power supply (as seen with similar LED filament bulbs).

OUYIDE Spiral LED 250 Watt Equivalent 3300LM 30W Daylight 6000K E26 Medium Screw Base LED Bulb

Get it here... OUYIDE OUYIDE Spiral LED Corn Light Bulbs 250 Watt Equivalent 3300LM 30W LED Bulbs Daylight 6000K E26 Medium Screw Base Health & Safety : Eco-friendly,Mercury free,Radiation free. LARGE Size: 7.87 x 3.14 inch.Please observe the size carefully before you pay.Please find fourth pictures High performance: Taiwan Epistar SMD2835 LED chips,Conventional Aesthetic appearance, 270 Degrees Lighting Angles Energy-Saving : Uses only 30watts! Replaces 250 watt incandescent,save over 90% electricity Long lifespan : Long service life,35000 Life hours,Lasts 18.3 years based on 3 hours use per day. Application : Suitable for High power LED Bulb,great for outdoor lighting projects,warehouse lighting projects,street lighting projects,garage,Driveway,Post light,Warehouse,Barn,Patio,Courtyard Garden,Street,Office,School,Hospital,Shopping...