Alexander Sutton Hough Posted December 9, 2017 Share Posted December 9, 2017 Hi does anyone know a battery option for Quasar Tubes Q-LED X CrossFade? Is there a DC to AC inverter for V Mount batteries? Link to comment Share on other sites More sharing options...
JB Earl Posted December 11, 2017 Share Posted December 11, 2017 (edited) I've run them on a department store inverter plugged into a cigarette lighter and a jump start battery. I called quasar about this and they didn't have any real guidance on other than an inverter and battery should work fine. Edited December 11, 2017 by JB Earl Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted December 11, 2017 Premium Member Share Posted December 11, 2017 I'd be astonished if they didn't use a DC bus internally. Is there no way to mod them for direct DC power? Link to comment Share on other sites More sharing options...
Vladimir Cazacu Posted December 11, 2017 Share Posted December 11, 2017 Considering how ridiculously expensive they are to buy in Europe, I was thinking of the same thing: buying the US version and an inverter + v-mount or a 220v to 110v step down for inside use. My only concern would be regarding flicker (step down would still be running at 50hz) and cheap car inverters might be PWM based. Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted December 11, 2017 Premium Member Share Posted December 11, 2017 They won't flicker, it'll all be DC driven. Someone send me one and I'll look at it :) Yes, they are absurdly expensive here. Fly to LA and buy more than a few and be quids in! Link to comment Share on other sites More sharing options...
Vladimir Cazacu Posted December 11, 2017 Share Posted December 11, 2017 Yes, they are absurdly expensive here. Fly to LA and buy more than a few and be quids in! Tell me about it. The 4' Crossfade 120VAC costs - 275$ in the US The 4' Crossfade 220VAC costs - 466$ in Europe Link to comment Share on other sites More sharing options...
Alexander Sutton Hough Posted December 29, 2017 Author Share Posted December 29, 2017 Ok so I cant find a V Mount battery inverter. But what if I used a power pack with its 100w AC invter like this one to power 2 50w quasars tubes? https://www.amazon.com/50000mAh-Portable-Generator-Rechargeable-Notebook/dp/B06XBPQKTR/ref=sr_1_13?ie=UTF8&qid=1514581004&sr=8-13&keywords=power+pack+ac+inverter Link to comment Share on other sites More sharing options...
Samuel Berger Posted December 29, 2017 Share Posted December 29, 2017 I got one with an interocitor. The original machine had a base plate of prefabulated aluminite, surmounted by a malleable logarithmic casing in such a way that the two main spurving bearings were in a direct line with the pentametric fan. The latter consisted simply of six hydrocoptic marzlevanes, so fitted to the ambifacient lunar waneshaft that side fumbling was effectively prevented. The main winding was of the normal lotus-o-delta type placed in panendermic semi-bovoid slots in the stator, every seventh conductor being connected by a nonreversible tremie pipe to the differential girdlespring on the "up" end of the grammeters. Link to comment Share on other sites More sharing options...
Ed Conley Posted January 2, 2018 Share Posted January 2, 2018 (edited) Samy's camera carries a Dynalite product XP1100 battery/inverter that would work. No longer available for purchase though. google image http://beauphoto.blogspot.com/2014/02/ex-rentals-dynalite-xp1100.html Edited January 2, 2018 by Ed Conley Link to comment Share on other sites More sharing options...
Jaron Berman Posted January 4, 2018 Share Posted January 4, 2018 https://www.bhphotovideo.com/c/product/925335-REG/pag_9508_gold_mount_to_vehicle.html or https://www.bhphotovideo.com/c/product/925334-REG/pag_9507_v_mount_to_vehicle_cigar.html with https://www.bhphotovideo.com/c/product/995854-REG/wagan_2221_6_smart_ac_150w_continuous.html I believe the 4' crossfades are 50w? Should be able to do 2x tubes with a 150w inverter, wouldn't go much smaller though. Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted January 4, 2018 Premium Member Share Posted January 4, 2018 It's a bit daft there's no battery option. LEDs are low voltage devices, usually. Link to comment Share on other sites More sharing options...
Stuart Brereton Posted January 4, 2018 Share Posted January 4, 2018 It's a bit daft there's no battery option. LEDs are low voltage devices, usually. From their website: "Many modern LED lamps run on 12volt which can be very useful especially on battery packs however 12volts is highly problematic when powering large scale arrays with multiple lights or when needing to cable more then 12 feet / 3 Meters from the power source where line loss effects the output and performance of the LED luminaire." Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted January 4, 2018 Premium Member Share Posted January 4, 2018 Sure, but that all applies to every 50W light out there. Although on second thoughts, while it'd be wasteful, if their electronics don't deal with slightly variable input power, there's stuff wrong. Link to comment Share on other sites More sharing options...
Stuart Brereton Posted January 4, 2018 Share Posted January 4, 2018 Sure, but that all applies to every 50W light out there. Although on second thoughts, while it'd be wasteful, if their electronics don't deal with slightly variable input power, there's stuff wrong. I'm not taking sides, just drawing attention to what they said. Link to comment Share on other sites More sharing options...
Jaron Berman Posted January 5, 2018 Share Posted January 5, 2018 Almost forgot - check the specs on the inverter - I saw Alexander's other post. Some of the ultra-cheap inverters can't go above like 15v without frying, and a fresh brick can be 17+.... so either check the specs or put a small voltage regulator inline on a good heat sink to dissipate a couple volts. As for voltage - all of the strip/tubes I've taken apart have been relatively high voltage internally, like 90+vdc. Not sure on quasar but one of my 4' died so I'll pop it open and see. 1 Link to comment Share on other sites More sharing options...
Vladimir Cazacu Posted January 5, 2018 Share Posted January 5, 2018 Please do tell us what's inside of the Quasar, Jaron. Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted January 5, 2018 Premium Member Share Posted January 5, 2018 They're probably running the LEDs in reasonably long strings for efficiency's sake, it's easier than ever to do that these days. Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted January 5, 2018 Premium Member Share Posted January 5, 2018 I'm not taking sides, just drawing attention to what they said. Oh, quite, I'm just querying what they said, which translates in my head to "we don't have that and we don't want to be criticised for not having it." Also Yuji has some rather similar things which are much (much (much, much)) cheaper. Though they're still mains-only. https://store.yujiintl.com/products/bc-series-high-cri-t12-led-tube Litegear actually advertise their small-diameter fluorescent-style strips as being made using their VHO strip, which really, I mean, you could make. In the shed. In ten minutes, using some sticky tape and plastic tube. Edit: I called the company "literibbon," for reasons of the brainworms. Link to comment Share on other sites More sharing options...
Stuart Brereton Posted January 6, 2018 Share Posted January 6, 2018 In fairness to QS, they do have battery powered 2ft bi-color tubes available, they're just a lot more expensive again. If those Yuji tubes are dimmable, and as color accurate as they say, they could be an interesting choice. Shame they're not bi-color. Litegear equipment is crazily overpriced in my opinion. Link to comment Share on other sites More sharing options...
Alexander Sutton Hough Posted January 6, 2018 Author Share Posted January 6, 2018 Almost forgot - check the specs on the inverter - I saw Alexander's other post. Some of the ultra-cheap inverters can't go above like 15v without frying, and a fresh brick can be 17+.... so either check the specs or put a small voltage regulator inline on a good heat sink to dissipate a couple volts. As for voltage - all of the strip/tubes I've taken apart have been relatively high voltage internally, like 90+vdc. Not sure on quasar but one of my 4' died so I'll pop it open and see. I am going to give it try with these parts this weekend. https://www.amazon.com/gp/product/B00CNXLDCQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B003SGJIRO/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Also got a hold of this power pack with inverter and is working so I have something for now. https://www.amazon.com/gp/product/B06XBPQKTR/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 Link to comment Share on other sites More sharing options...
Jean Gonzales Posted January 6, 2018 Share Posted January 6, 2018 The new rainbox rgbx version have a DC plug build in. 12 to 24 volts Link to comment Share on other sites More sharing options...
Alexander Sutton Hough Posted January 18, 2018 Author Share Posted January 18, 2018 Some updates on this. I got my Quasar tubes today. 1x 2ft and 2x 4ft cross fades. My V-mount to 12 volt car inverter with a 12 volt regulator in between works but only half the time. The Car inverter I bought said 150 watts but it only work with the 1 4ft 50w tube before tripping the inverter. What is working is a 1 2ft and 1 4ft about 75w worth with the Imuto power pack and its inverter. https://www.amazon.com/50000mAh-Portable-Generator-Rechargeable-Notebook/dp/B06XBPQKTR/ref=sr_1_6?ie=UTF8&qid=1516307116&sr=8-6&keywords=imuto+power+pack I will test later today to see how long a full charge will last with these. It claims to be 185wh which would be 2.4hr at 75wh but seemed to be draining to fast on its level meter. Link to comment Share on other sites More sharing options...
Alexander Sutton Hough Posted January 19, 2018 Author Share Posted January 19, 2018 (edited) Some updates on this. I got my Quasar tubes today. 1x 2ft and 2x 4ft cross fades. My V-mount to 12 volt car inverter with a 12 volt regulator in between works but only half the time. The Car inverter I bought said 150 watts but it only work with the 1 4ft 50w tube before tripping the inverter. What is working is a 1 2ft and 1 4ft about 75w worth with the Imuto power pack and its inverter. https://www.amazon.com/50000mAh-Portable-Generator-Rechargeable-Notebook/dp/B06XBPQKTR/ref=sr_1_6?ie=UTF8&qid=1516307116&sr=8-6&keywords=imuto+power+pack I will test later today to see how long a full charge will last with these. It claims to be 185wh which would be 2.4hr at 75wh but seemed to be draining to fast on its level meter. I got with the 4ft 50w and the Imuto Power pack 3 hr and 25 min. In theory I should of got 3 hr and 42 min looks like a 10% difference, could be the power loss from the DC to AC inveter. Cool that I have a battery option now. Sad I cant get the V mounts to work as well. Side note has anyone had issues plugging these into a GFCI outlets. Mine keeps instantly tripping the ones in my bathroom and kitchen. Edited January 19, 2018 by Alexander Sutton Hough Link to comment Share on other sites More sharing options...
Ed Conley Posted January 19, 2018 Share Posted January 19, 2018 http://www.castexrentals.com/view.php?cat_id=3&sub_id=114&item_id=1001 Link to comment Share on other sites More sharing options...
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