Piranha Super-Flux vs high brightness 5mm LED review - Page 1
Forum section: electronics / general

author: ElectroElvis
author_rank: Regular Contributor
timestamp: June 27, 2012, 07:09:45 am
content: Hello,IF somebody is interested to check out the difference between standard high brightness LED's and Piranha LED's feel free to read little further or skip to my webpage:www.electroelvis.comFor actual test I have used two 5mm high brightness LED’s and two Piranha Super-Flux. All four are cold white color except one Piranha is warm white.LED’s came from websitewww.hebeiltd.com.cnwhich they have quite low prices compared to others, only catch is if you buy low quantity they charge you “penalty” for that.For input voltage and current refer to the picture above, lettering in the RED provides that dataAll LED’s are on breadboard with 5V Voltage regulator on input. Power source is 9V battery and each LED has dedicated resistor to come as close as possible to max potential.More picture's from test and video can be viewed on next two links:Website:http://electroelvis.com/Video:http://youtu.be/g7OtLVk5yiU

author: Psi
author_rank: Super Contributor
timestamp: June 27, 2012, 08:55:14 am
content: Yeah, piranha LEDs are really good.I ordered 50 of the red, green, blue and RGB piranhas fromwww.hebeiltd.com.cnabout 3 years ago.All of mine have a viewing angle of 110-130 because i wanted to use them for illumination.I put quite a few in my car to replace various lamps and around 9 of them to replace the interior light.I also managed to take some nice switches apart and replace the lamp with RGB piranhas.Hollowed out the first switch contact module and used it for the 4 RGB led connections.http://psi.abcom.co.nz/dac.avi

author: ElectroElvis
author_rank: Regular Contributor
timestamp: June 27, 2012, 09:19:09 am
content: I will definetly order some more in future, yes there were also Piranha up to 140° viewing angle but at the moment I only needed ones with narrow view angle.Very nice trick with switch. Do you limit power to them or you illuminate them at full brightness, in this case is it too bright to "find" switch?Elvis

author: Mint.
author_rank: Frequent Contributor
timestamp: June 27, 2012, 10:57:55 am
content: Fantastic blog, excellent content there. Subscribed!

author: Psi
author_rank: Super Contributor
timestamp: June 27, 2012, 01:44:54 pm
content: Quote from: ElectroElvis on June 27, 2012, 09:19:09 amCurrently around 8 of them are connected up to a micro controller driven 40 channel array of DACs in my car.I made the DAC array controller board many years ago before i really knew about PWM.It wasn't the best solution but it works. It varies the voltage between 0-5V with a resistor in series with the LEDs to limit the current to 50mA. So the brightness can be controlled by the DAC value.

author: poorchava
author_rank: Super Contributor
timestamp: June 28, 2012, 08:15:13 am
content: Maybe a bit of a dumb question: is Pirahna some specific LED manufacturer or this name refers only to the shape (square base and 5mm lens, wide viewing angle)?In Poland for example this type of led is commonly referred to as "superflux".

author: Psi
author_rank: Super Contributor
timestamp: June 28, 2012, 11:35:57 am
content: They're also called UFO leds.

author: ElectroElvis
author_rank: Regular Contributor
timestamp: June 28, 2012, 10:39:34 pm
content: To answer a question: Originally it was called and still is called SuperFlux that is trade name from Philips light department. Others call it Piranha, HighFlux, UFO... All those names are just describing same product.LED diode with very high output, lower thermal output at same ratings then standard LED's better mounting and anti movement since it has four pins.All in all it is the same product just different name. Hope that this answer's your question.Just a little candy for all: SuperFlux is trade name from Lumileds, which is now almost 100% in Philips ownership but before that it was 50% 50% between Philips and Agilent