Xpe2 Max A

[gaston01]

Hi guys

A technical consultation, which is the maximum current that can feed a xpe2 to get maximum performance?

Obviously on sinkpad and mounted on copper below

Thanks !

[musicmagic]

Emitter Test Results pt4: XML2, XP-E2, XP-G2, and Nichia219! (along with sinkpad tests)

Folks, Long time no see... Since most of you are now aware of my testing procedure, I'll be brief here. The following is a test of the Cree XML2 on a standard aluminum 20mm star, along with another xml2 mounted on a copper sinkpad. (member vestureofblood was kind enough to send me out these for testing). [image] Graphs speak louder than words, so here they are. The first one is the XML2 on a standard star, followed by a comparison graph between a standard aluminum star and a copper sink…

LEDs & Other Stuff - (Reference Guide)

Summarised here is information taken from different resources about LEDs, drivers, batteries, chargers & various other flashlight related stuff condensed as a useful guide with external links to more information. This post is very image heavy and may take some time to fully load…. [image] . Flashlight Basics(link is external) Flashlight Terminology(link is external) . LED Names Guide (Some common LED emitters used in flashlights) [image] . LED Size Comparison Guide (How the LE…

[gaston01]

Thanks,

Had seen the excellent work of Match but that information has time, current ranges are below what is now overfeeding these leds…
Regarding the second link I know the values manufacturer

[Ledsmoke]

4 emitters tested: Cree XP-E2, JR 3535, small die Nichia 219B, Luxeon Rebel lime colour

Four emitters were tested on direct-thermal-path MCPCB's, three white 3535 leds of comparable die size, and the new Rebel in the colour lime. Current, voltage and light output was measured using a laboratory power supply, a cooled copper mount and a home made integrating sphere (the set-up was as described in my XP-L tests): A Cree XP-E2 R3 1D, obtained from illumn.com A chinese 3535 size (XP footprint) cool white led branded 'JR' obtained from dx.com A Nichia 219B 5700K led with a smaller xp…

[gaston01]

@Ledsmoke

4 emitters tested: Cree XP-E2, JR 3535, small die Nichia 219B, Luxeon Rebel lime colour

Been very useful thanks!