"50W" LED Brake lightbulbs, are they brighter than stock? - Mazda3 Forums : The #1 Mazda 3 Forum
 
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post #1 of 3 (permalink) Old 02-14-2014, 02:30 AM Thread Starter
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"50W" LED Brake lightbulbs, are they brighter than stock?

I've got some tinted tail lights and as a result the brake and turn signals show up pretty dimly. I'm looking for something brighter and was wondering if anyone has any experience with the LED "bulb" replacements?

Typical example would be something like this "50W" set:
http://www.ebay.com/itm/221219595675

Would these be brighter than the stock bulbs?
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post #2 of 3 (permalink) Old 04-24-2014, 08:10 PM
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Not sure if this is still a relevant question, so sorry if I'm reviving a dead thread.
Those bulbs are listed as having a 600lm brightness, so they probably will not be much, if any, brighter than stocks.
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post #3 of 3 (permalink) Old 04-25-2014, 12:50 PM
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Quote:
Originally Posted by Zoom x 3 View Post
I've got some tinted tail lights and as a result the brake and turn signals show up pretty dimly. I'm looking for something brighter and was wondering if anyone has any experience with the LED "bulb" replacements?

Typical example would be something like this "50W" set:
http://www.ebay.com/itm/221219595675

Would these be brighter than the stock bulbs?
No, they won't be brighter. and do not fooled by number of 50W on those advertisement.


Never can handle such larger power in small bulb design.

White one looks like using XT-E which absolute max power rate is 5W
Absolute max rate means, number that device shall not exceed under any conditions.

Using 10 x of XT-E will adds up number of total Absolute max rate as 50W, but if that bulb really output 50W, all emitter will momentary thermal runaway, burn and dead.


Other color ones, picture showing XP-E if that even not XP-C
XP-E is max 3.5W emitter in while or blue color and red one is max 1.8W

having 10 of those only adds up their marketing number 18W the most, but of course, even 18W is way too much power for those kind of bulb design to take.

Heatsink for 18W with passive convection normally is like knuckle size, 50W will be like two knuckle together at least.



Placing white LED behind red lens won't do much, as white LED primary a blue LED.
Also LED bulb won't have right focus point alignment.
Unless bulb used in reflector work together with reflector, it won't focus right and all light output shoot or scatter to useless direction.


I would say stay stock incandescent bulb unless you cut open tail lamp and do complete LED custom work with proper optics designed together, which takes tons of effort, time and expense.
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