Hi, It also seems worth noting that they sell a 12V car charger with a Sten battery adapter!
Cheers, David On 2/8/11 7:10 PM, Diana Tomchick wrote: > If you believe the StenLight fact sheet at > > http://www.stenlight.com/fact-sheet.htm > > then the CustomDuo inserts compare favorably to the StenLight S7, which > estimates 140 lumens on the highest setting, and lasts for 2 hours with the > fully charged StenLight (LG723) 2.3 AH 7.4V lithium ion battery. According to > the CustomDuo web site, the CustomDUO modules are regulated to run at 350 mA > and output 140 lumens for the XPG R5 LED. The web site claims that 4 AA > batteries will power the light for about 6 hours on the high setting (350 > mA). They suggest you use Sanyo Eneloop rechargeable AA batteries (2000 mAH > per cell) rather than alkalines. > > It seems that the reason these Duo inserts are now available is that the Cree > XPG LEDs are more efficient (thus generate less heat) than older LEDs. The > Duo headlamp wasn't originally designed with a big heatsink in the lamp. The > higher efficiency also means that it's reasonable to use the stock Duo > battery packs and rechargeable NiMH batteries. > > Since I typically use a four "C"-cell belt pack (with 5000 mAh per > rechargeable NiMH cell) for my Duo, in theory I could run one of these > modules for about ten times that amount of time (around 60 hours) on the high > (350 mA) setting. > > Still not as many lumens as my Scurion, but a worthy upgrade to my second > light nonetheless, > > Diana > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * > Diana R. Tomchick > Associate Professor > University of Texas Southwestern Medical Center > Department of Biochemistry > 5323 Harry Hines Blvd. > Rm. ND10.214B > Dallas, TX 75390-8816, U.S.A. > Email: [email protected] > 214-645-6383 (phone) > 214-645-6353 (fax) > > > > On Feb 8, 2011, at 11:16 AM, caverarch wrote: > >> Diana, I see that it will even work for folks old enough to still have a >> Halogen version of the Duo in their equipment stashes. I think I'll go for >> it, though I have never set up a PayPal account. >> >> How do you think it would compare with a Sten? >> >> Roger Moore >> Houston >> >> >> >> -----Original Message----- >> From: Diana Tomchick <[email protected]> >> To: Cave Tex <[email protected]>; Metroplexcavers >> <[email protected]> >> Sent: Tue, Feb 8, 2011 10:48 am >> Subject: [Texascavers] Custom Duo inserts >> >> This may be old news to those who religiously read the NSS Cave Forum ("Cave >> Chat"), but there is an interesting new LED module being sold for the Petzl >> Duo >> 14- or 8-LED headlamps: >> >> >> http://customduo.co.uk/customduo.aspx >> >> >> These modules use Cree XPG LEDs (your choice of the R5 or R4), and you have >> a >> choice of replacing just the side spot (the halogen bulb) or both the side >> spot >> and the original LED module. Lumen ratings range from 110 to 280 depending >> upon >> configuration. Prices range from 28 to 44 English pounds ($45 - 71), >> international shipping is free (for now). Payment is via PayPal. >> >> This may be an inexpensive way to upgrade your old Petzl Duo headlamp into >> something much brighter (and a lot sturdier and more waterproof) than many >> of >> the Princeton Tec headlamps currently available (such as the notoriously >> finicky >> Apex). >> >> Diana >> >> * * * * * * * * * * * * * * * * * * * * * * * * * * * * >> Diana R. Tomchick >> Associate Professor >> University of Texas Southwestern Medical Center >> Department of Biochemistry >> 5323 Harry Hines Blvd. >> Rm. ND10.214B >> Dallas, TX 75390-8816, U.S.A. >> Email: >> [email protected] >> >> 214-645-6383 (phone) >> 214-645-6353 (fax) >> >> >> >> >> ________________________________ >> >> UT Southwestern Medical Center >> The future of medicine, today. >> >> --------------------------------------------------------------------- >> Visit our website: >> http://texascavers.com >> >> To unsubscribe, e-mail: >> [email protected] >> >> For additional commands, e-mail: >> [email protected] > > > --------------------------------------------------------------------- > Visit our website: http://texascavers.com > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > -- David Ochel, mailto:[email protected] --------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
