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Found 9 results

  1. I read most of the related topic that you need a proper generator to power up the hmi and kino. So can I use any generator for tungsten light? mostly for the light under 1k.
  2. I read online that you can ONLY use HMI lights with inverter generators. Question 1: What would happen if I tried to power an M18 with a generator that was not inverter? It's just a regular gas genny. Would that damage the light or ballast? Would it just not work? Questions 2: I have a Ryobi 1800w running watt, 2300 starting watt generator seen here: I'm told that hmi's require a higher wattage when striking. Would I be able to strike an m18 with this Ryobi generator? Is 2300 enough to strike it? What's the wattage required to strike? Question 3: If I tried to strike the m18 on that ryobi genny and it was not enough power, what would happen? Would the light just not turn on? Is there any risk of damaging the light when you try to strike it and there is not sufficient power?
  3. Is there way for someone like me to start using a generator so that I might power an M40 or an Arrisun 60? I love the M18 because I allows me to work with a decent amount of light on a very small budget. I've been shooting commercial projects on a thin budget by running with one M18, a few fluorescent fixtures a great deal of light modifiers. In the states, I believe an M18 is about the most powerful light you can run off a house or office circuit. (If there are more powerful options, I'd love to use them) Is the answer as simple as renting or buying a 6500 watt portable generator or is there more to it?
  4. Hi guys, My team and I are shooting the 48HFP tomorrow and we've found out that the location we'll be using will not have any usable outlets. It's a small side house on my friend's property. I originally was part of a groupbuy for high CRI leds that would be battery powered but those have not arrived. We're bringing only a handful of things, namely 2x 2 bank kinos, and one or two LED/CFL bulbs (unknown wattage yet but under 100w) for a china ball setup. I do have an LED wand (icelight) and was thinking of sticking that inside the lantern and then flagging some of the spill but haven't tested that. Would it be correct in assuming that (I've never used a power generator), I could rent something like a 2K portable generator (I don't believe the kinos have PFC) and that should be fine? Appreciate the help, thank you.
  5. Hello everyone, I am a student of the Virginia Commonwealth University's Cinema department, and one of our Adjunct Professors is directing a short film as part of his MFA Thesis. The short is crewed largely by former and current students of our program, though the DP is a local professional. While crewing with our students was a non-issue for Grip and Electric for a long time, we have recently discovered that we will be using a 12k HMI, which is something I only have minor experience with, and none of the other team members have yet worked with any light larger than a 4k. As I have not worked with this DP in the past, I am uncertain of the extent to his knowledge of electricity. I figure he knows more than I do, but just to be safe, I want to cover my bases and learn as much as possible before we begin shooting this coming Monday. Currently, we have a 45KVA MQ WhisperWatt Generator at our immediate disposal. I have posted a photo of the specs below. After doing some math (to the extent of my abilities) and talking to a local gaffer (though I did not show him the photo), I have been given the impression that this 45KVA Generator should be sufficient to run a 12k and also support additional lights and power needs. This brings me to my first question: Does this Generator seem like it would be able to sustain a 12k, and still run a distro set-up with 3 100 amp lunchboxes additionally, or would we have to rent out another generator? Discussing with the team, we were at a loss as to whether the 108 Amp "Rated Current" (shown in the photo) refers to the overall output of the generator, or if each phase of the generator is 108 Amps. I realize that the two hots used to run the 12k would be taking at least 50 amps each (Is this correct? Also, I have not gotten a chance to look at the ballast, I only know that it is Magnetic, which I have never used before, and that the light itself is a CMC Silver Bullet. I do not know what the Power Factor is), so it would be best to use the third leg for powering anything else. Related: What are some pros and cons of using a Magnetic Ballast? Having only used Electronic Ballasts, I can only recall various tidbits I have read before: Magnetic ballasts are heavier, but don't break as easily. Are there any problems with Flicker that Electronic Ballasts avoid? The opposite? Finally: What special considerations must be taken into account when using the 12k? I have some experience with setting up 12ks, but only in the capacity of being an Additional Set Lighting Technician who was just following the orders of people much smarter than myself. I have never even come close to needing to know the ins-and-outs of designing a distro set-up to support a light greater than 4k. My plan is to run Banded from the Generator to the 600 amp Distro-Box, three lines of 100 Amp Bates to 100 Amp Lunchboxes, and two Hot lines and the Ground line from the Distro-Box to the 12k whenever it is needed. Is there any major flaw to this plan that I have overlooked? Any other advice that anyone would be able to give us would be greatly appreciated. I know that I have a lot of expansive gaps in my knowledge, and having accidentally stumbled into the position where I am the most knowledgeable member of a team using this intense of a setup, I really don't want to mess anything up. Thank you for your time and thoughts, everyone!
  6. I have developed a new HD Plug-n-Play Pkg. that enables the paralleling of two Honda EU6500 inverter generators to generate 100 Amps of power. A complete system consists of two modified Honda EU6500s, a Paralleling Control Box, and one of our Transformer/Distros (either 60- or 84- Amp.) Parallel operation of two Honda EU6500 generators made possible by our new Paralleling Control Box) The generators require modification to interface with our standard Paralleling Control Box, which syncs the frequency and equalizes the load between the generators. Our proprietary paralleling control circuitry uses the Pulse Width Modulation (PWM) of the generator's inverters to control the load sharing. The phase angles of the two generators are synchronized using open loop architecture. The final function of our control box is to switch the outputs of the inverters to a common bus after their frequencies are locked in step (same phase angle and time base.) 
(As demonstrated here, our new HD Plug-n-Play Paralleling System can power a 6K HMI as well as 2-2k and 2-1k Fresnels) To provide power that is readily accessible in industry standard outlets, our Paralleling Control Box is outfitted with both a 240V Bates receptacle, as well as a "Hollywood Style" 240V Twist-lock receptacle. The 240V Bates pocket is there to power larger HMIs than has ever been possible before on Hondas (4k - 9k ARRIMAXs.) The "Hollywood Style" 240V Twist-lock receptacle is there to supply power to either our 60- or 84- Amp Transformer/Distro. The Transformer/Distro serves several important functions in this system that enables two EU6500s to be paralleled (use this link for details), but its' primary function is to step-down the combined 240V output of the two generators into a single large 120V circuit (either 60- or 84- Amps) that is capable of powering more small lights, larger 120V lights (5-10k Quartz) than has ever been possible before on portable Hondas. Each of our Transformer/Distros is likewise outfitted with an industry standard 120V Bates receptacle so that you can use standard distro equipment, like Bates Siameses, Extensions, and Break-Out boxes to distribute power around your set, breaking out to U-Ground Edison Outlets where ever needed. Our 60A Transformer/Distro provides 120V power to smaller lights while a 6K HMI operates at 240V) 
 An added benefit to using a Transformer/Distro to distribute the combined power of the two generators is that, no matter where you plug into the Transformer/Distro on its' secondary side, it automatically balances the load on the generator's two legs (which is critical for successful paralleling of two machines – use this link for details.) This feature also makes electrical distribution on set incredibly simple: you just plug in lights until one of the generator's load indicators reads 6000 Watts and the Transformer/Distro does the rest. But, the most important benefit to be gained by using a Transformer/Distro, the one that makes it possible to parallel two EU6500s in the first place, is that it isolates the generators from high neutral return currents that can lead to dangerous neutral “cross-current” between the two generators that can overheat their inverters (use this link for more details.) By reducing the dangerous neutral “cross-current” created by two generators operating in parallel, our Transformer/Distros make it possible to operate more lights, or larger lights, on portable Hondas than has ever been possible before. Given the high sensitivity of HD camera systems these days, just about all the light you will need to obtain good production values can now be operated on our new HD Plug-n-Play Pkg. (use this link for more details.) Contact me if you want to retro-fit your Honda EU6500 for parallel operation without modification. Guy Holt, Gaffer, ScreenLight & Grip, Lighting Rental & Sales in Boston
  7. I am just wanting some reassurance on a generator / HMI set up so if anyone can share some knowledge, please do! We're going to be powering two Film Gear 2.5kW HMIs off a Honda EU65is genny which is advertised as 6.5kW but is actually rated at 5.5kW continuous. We'll be running 32amp extensions from the generator into a K9 32amp > 4 x 16amp box and the HMIs from there. I'm fairly new to working with HMIs and have read a lot about crystal sync, etc. so just wanted to double check this sounds correct to you pros out there. I'm based in the UK if that makes any difference. Thanks, Josh
  8. Hi Guys. I'm gaffering a shoot in a big old country home which itself runs off a 7.5kVA generator. I want to use a 1.2k HMI to try and keep power to a minimum so first question is do I actually need a synchronising crystal generator to ensure I don't "hurt" "blow" the light. This will also be my first time hiring a genny and so I don't know what the socket options are. All the lights I'm hiring use the standard edison UK 3 pin (I think) and so I don't know if the genny has the same output sockets or if I will need some sort of adapter? Cheers, Chris.
  9. Hi all, I'm currently prepping to DP a short film that has some night exteriors in the woods. We're shooting on Red One MX and have it in our budget for a 6K HMI par, but I've never worked with such large lights. Given that we won't have a professional gaffer or electrician on set, is this realistic or even safe? What kind of genny would you recommend for this type of light? A condor is out of the question so we would be placing the light on a tall stand. My main goal is to provide enough background and rim light such that the scene doesn't suffer from a low-budget student film look. Best, Arman
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