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LED's not flashing bright enough

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Nabil7

New Member
Hi Im new here.

I just installed some LED indicator lights on my VW golf and they are nothing as bright the traditional filament bulbs that it had.

The reason why i bought LED's is that they come on straight away and turn off straight away rather than a fading effect.

Could someone tell me why this is, the it works but isnt bright at all. Im a newbie at electronics and no nothing, any advice would help.

Thanks
 

alec_t

Well-Known Member
Most Helpful Member
Welcome to ETO!
A number of factors determine the apparent brightness of LEDs, including semiconductor die size, packaging colour/translucency, current, ambient lighting and emission directionality (beam angle).
 

Reloadron

Well-Known Member
Most Helpful Member
Hi Im new here.

I just installed some LED indicator lights on my VW golf and they are nothing as bright the traditional filament bulbs that it had.

The reason why i bought LED's is that they come on straight away and turn off straight away rather than a fading effect.

Could someone tell me why this is, the it works but isnt bright at all. Im a newbie at electronics and no nothing, any advice would help.

Thanks
This can actually come down the brand name. I am seeing LED lamps to replace a wide range of automotive lamps including for use on motorcycles. I recently replaced my brake and tail light, replacing a common 1157 lamp and the LED replacements I used were much brighter. Trips to the automotive store have revealed a wide range of lamps all using the same base connection as those they are designed to replace. My guess is much of how bright a replacement LED lamp is can depend on the brand name. The LEDs I have used on my bike are all Cree manufacture.

Ron
 

Nabil7

New Member
This can actually come down the brand name. I am seeing LED lamps to replace a wide range of automotive lamps including for use on motorcycles. I recently replaced my brake and tail light, replacing a common 1157 lamp and the LED replacements I used were much brighter. Trips to the automotive store have revealed a wide range of lamps all using the same base connection as those they are designed to replace. My guess is much of how bright a replacement LED lamp is can depend on the brand name. The LEDs I have used on my bike are all Cree manufacture.

Ron
Its the osram py21w led amber. Im guessing theyre a good brand because of the reviews and the price. Was about to go for the phillips but too expensive.
 

Nabil7

New Member

audioguru

Well-Known Member
Most Helpful Member
I just installed some LED indicator lights on my VW golf and they are nothing as bright the traditional filament bulbs that it had.
That is why it is illegal to tamper with lighting on vehicles in Canada. I have seen some too dim and too bright lights on cars before the cops caught them.

Didn't you read the datasheet for the very expensive Osram py21w led amber bulb? It says they are designed for interior lighting and are not road legal for exterior lighting.
It says that they use only 2W and says, "Only for off-road use. Not approved for use on public roads when used in an exterior application. Illegal use leads to cancellation of vehicle operating licence and loss of insurance cover".
 

ci139

Active Member
Ive seen people on youtube with the exact same LED and its bright like its supposed to be. The LED i have is the osram py21w led amber
is your product backward trackable to it's original manufacturer
did it came with any declaration of conformity
did it came with any tech. spec manual provided by manufacturer
does it have a warranty
is the warranty activated/valid

we can assume things here - or you can show us what you exactly have in hand / rise a law suit if it comes to such
 

audioguru

Well-Known Member
Most Helpful Member
My son bought some cheap Chinese LED light bulbs for home use. They claim to be as bright as a 60W incandescent light bulb but they are obviously much dimmer.
I am happy with the compact fluorescent light bulbs I bought about 15 years ago and have not tried LED bulbs for my home. But I have very many (too many) LED blinking and colors-changing things all over my home and yard, many are solar-powered.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
My son bought some cheap Chinese LED light bulbs for home use. They claim to be as bright as a 60W incandescent light bulb but they are obviously much dimmer.
I am happy with the compact fluorescent light bulbs I bought about 15 years ago and have not tried LED bulbs for my home.
The CCFL ones are absolutely crap - slow to come on, and really poor colouring.

LED ones are massively better - I've replaced all my lighting with LED ones, using 10W LED to replace what used to be 60W incandescent originally, and were later 22W CCFL. The 10W LED bulbs are considerably brighter than either of the previous ones, and come on instantly at full brightness, plus give a much cleaner white light.
 

ci139

Active Member
it's not about LED-s being too dim
it's also them being "too bright"
i have bought
5pcs. 6pcs. of household flashlights as:
  1. was not working from the beginning
  2. are still operational
  3. -1 deceased soon after purchase (couple of months)
so the 60% is junk by https://suite.endole.co.uk/insight/company/OC337288-komanda-technics-europe-llp
the ones operational are good only they come with "hidden markup" of 1/.4 ≈ 250%(same as ®+150%) . . .
_______________
update
  1. was not working from the beginning
  2. deceased soon after purchase (couple of months)
  3. are still operational
so it's 50%/50% = 200%(/$®+100%) "markup"

. . . the PWM part works good only the LED´s (i assume!) internal wiring fails tested with spare LED so the case and the PCB remain GOOD! -- yet to figure out the use for
______________

- which is no surprise coz we sold the dyto´s
by carpoint and over 50% of these were returned to our wholesale store !!!
=================
? don't by anything LED PWM ?
 
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