Re: The LED lighting thread
Posted: Wed Nov 22, 2017 12:43 am
Were your incandescent (filament) lights that you were comparing against new or had they been used for awhile.
As the following link shows the incandescents quickly degrade and have a "designed" lumen output some 60% less than the initial output.
https://www.rvledbulbs.com/v/vspfiles/a ... tbulbs.pdf
The LED replacements for a 1157 (single) that I used would have had a lumens output(325) that would be a bit less than the initial incandescents(402 lumens) but would be twice the output once the incandescents had aged (161).
When I installed my LED tail/stop lights I was comparing against aged incandescents and the LED's were clearly much brighter.
As the following link shows the incandescents quickly degrade and have a "designed" lumen output some 60% less than the initial output.
https://www.rvledbulbs.com/v/vspfiles/a ... tbulbs.pdf
The LED replacements for a 1157 (single) that I used would have had a lumens output(325) that would be a bit less than the initial incandescents(402 lumens) but would be twice the output once the incandescents had aged (161).
When I installed my LED tail/stop lights I was comparing against aged incandescents and the LED's were clearly much brighter.