 |
 |
We buy UV lamps from Jelight Company Inc. for replacements on our AKTA systems (http://www.jelight.com/low-pressure-uv-lamps.html <http://www.jelight.com/low-pressure-uv-lamps.html>). It’s not a direct replacement in that a few modifications needed to be made: 1. cut two groves on the lamp base (with a file) to fit the GE housing. 2. needs it’s own power supply (12V DC), also available from Jelight. The UV lamp costs $299.00, power supply costs $169.00. The original GE lamps typically lasted between 1 to 2 years in my lab. The Jelight lamps have been running for more than 5 years and are still going. Cons: the down side is that when the AKTA first starts up, it detects and adjust power output to the lamp, so we would need to turn the modified external 12V DC power on at precisely the moment the AKTA looks for UV signals (by looking the status LED panel on the AKTA). Another minor drawback is that we bought 285nm lamps, so it can’t be switched to 260nm for DNA (which we don’t need), but you can also buy a 260nm if you do need it. Side note: besides the cost savings of the lamp, the lamp power supply in our AKTA burnt out (both units in my lab) and they cost $4,000. in parts alone to replace. The $169 external power supplies have been running constantly for 5 years now without sign of problems. Cheers, Quyen Assistant Professor Indiana University School of Medicine Department of Biochemistry and Molecular Biology Stark Neurosciences Research Institute 635 Barnhill Drive MS0013C Indianapolis, IN 46202 > On May 6, 2015, at 8:48 AM, Mark Stead <[log in to unmask]> wrote: > > We have recently purchased a mercury lamp without the housing (product code: 28-9354-93) from GE Healthcare. The difference in cost between the two is only small here in the UK, but I’m not sure how this compares to the States. > > Mark > > > Dr Mark A. Stead > School of Biology | University of Leeds | > L C Miall Building Room 8.16 | Leeds LS2 9JT | United Kingdom | > > Lab: +44 (0)113 343 2890 | Office: +44 (0)113 343 3154 | E-mail: [log in to unmask] <mailto:[log in to unmask]> > From: CCP4 bulletin board [mailto:[log in to unmask] <mailto:[log in to unmask]>] On Behalf Of Bonsor, Daniel > Sent: 05 May 2015 16:06 > To: [log in to unmask] <mailto:[log in to unmask]> > Subject: [ccp4bb] Off topic - Mercury Lamp for Akta > > The mercury lamp (28-4042-25) offered by GE Healthcare for Akta systems come with the housing and is priced at $1345. We have plenty of sparing housing units and are interested in just the lamp. Does anyone here have any cheaper alternatives/suggestions than buying the lamp and housing? > > Thanks in advance. > > Dan > > Daniel A Bonsor PhD. > Sundberg Lab > Institute of Human Virology > University of Maryland, Baltimore > 725 W Lombard Street N370 > Baltimore > Maryland > MD 21201 > Tel: (410) 706-7457 > http://www.sundberglab.org/Home.html <http://www.sundberglab.org/Home.html>