Sun competing Led?

nyvz said:
Is it really 25lbs though?? A Joker 400 is apparently only about 10lbs including the ballast...
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I'm not concerned with the weight as I have lightweight lights. An LED fresnel with over 400 watts is really appealing. I took a gamble and ordered one today. If it arrives in time for a shoot I have next week I'll give some feedback.
 
Please do. I was most concerned with durability and longevity.. along with believable TLCI & CRI numbers. Pretty certain the output won't measure up... but even if it's around a 2k fresnel - with ability to dial in color temp.... that's something I'd use.
 
I've read a few user experiences which put it about a 2k tungsten which is exactly what I want. Longevity is always the question with any new product. I got the daylight only one as it's brighter by 15% and I need that output often to battle daylight.
 
nyvz said:
Anyone know how hard it would be to plug one of these into a wall? :)

http://www.ebay.com.au/itm/pair-10i...692097?hash=item33c17f85c1:g:uVkAAOSwo4pYD0V9
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Pretty easy. You just need to by a medical power supply that outputs the correct DC voltage. I would go with a switching power supply that outputs 24v or 28v so that the amperage can be lower. Is it really an 800w draw? Anyway, the lights come with standard automotive wiring harnesses so you just have to get some extrusion or bar metal from Home Depot so you can mount them somehow. I wouldn't use something like this for anything other than blasting into a softball or other diffusion, so maybe you could mount them directly into a speed ring and bolt a Mafer clamp to the bottom to stick the thing on a stand.
 
Mitch I bought 140w lights similar to those linked 4x4 truck lights - and could not find any easy way to power th from the wall??

Most ac-dc supplies I could find were precision instruments not able to deliver the current
 
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Mitch Gross said:
Pretty easy. You just need to by a medical power supply that outputs the correct DC voltage. I would go with a switching power supply that outputs 24v or 28v so that the amperage can be lower. Is it really an 800w draw? Anyway, the lights come with standard automotive wiring harnesses so you just have to get some extrusion or bar metal from Home Depot so you can mount them somehow. I wouldn't use something like this for anything other than blasting into a softball or other diffusion, so maybe you could mount them directly into a speed ring and bolt a Mafer clamp to the bottom to stick the thing on a stand.
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I dunno, that's certainly what's advertised and makes sense given the emitter count and rating. Seems like the thermals might be an issue since the package seems the same as the lower rated models... Oddly there seems to be only one company that makes these >400W and they may not ship out of Australia. For the price, it might worth trying out one of the more available 300-400W versions since 300-400W power supplies also seem more available. Too bad none of these have CRI ratings, but I'm guessing even if they use Cree or Philips LEDs they are probably the cheapest CRI70 or CRI80 versions. Might be a good alternative to other HIDs for night exteriors where they are getting gelled and color quality isn't as critical anyway. I like the par-like design with the removable spot/flood lenses, probably means they are super narrow without the lens like an HMI par?

BTW it seems 6500K balanced high intensity CREE LEDs have a CRI of only 65... :(
 
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Quick self-promotion post: I'm almost finished with the design of my DIY LED fresnel lights. I have used them on two projects recently and I'm very happy with them, I just have to find a better on-off switch (I've already tried two options and they're too weak for a set, they break too easily) then I'll post a video presentation.

They're not "sun-competing" but they're relatively powerful: they draw approximately 100W, and match an 800W tungsten fresnel in terms of output. Nice CRI 93 LED and optical-grade glass (it's not actually a fresnel lens, I use glass intended for prescription glasses to get better transmission and higher output), dimmable, with no flicker at any frame rates I've tried (up to 960 fps), and able to work for an hour out of a $80 1Kg (2 lb) LiPo battery. And talking about weight, the head is like a cube of approximately 10x10x10cm weighting just 550g (that's 4x4x4" and 1.2 lb) (it does have an open-face fan but it's almost silent).

I'll be selling these for around $350, but I don't plan on selling many of them because getting the certifications for everything to be "clean" is just a pain: it's a DIY project and I just want to get some of my investment back, plus the feeling that I made something that other people like :)
 
Thanks - seems LED drivers are about $100 for more chunky cree arrays - designed for use on offroad vehicles.

To 'review' my Cree LED bar lights... here goes

They are 140w per array - I can run 2 off a 12v leisure battery for some significant time.

I would not trust the CRI in any way. They are however extremely useful mainly in the dark away from power such as horror/pop vid shoot in a wood/on a beach.

I have used them with CTB to make them 'moon', without frost they are pretty horrid in terms of multiple shadows.

Certainly worth the $250 my setup cost, adding another $100 to make them mains ready maybe not.

Here a single unit can be seen illuminating a building maybe 15 away..

https://twitter.com/sammorganmoore/status/509422075740561408
 
Those linked truck lights seem woefully undercooled, I don't see where they are dissipating the ~700W of heat you get from them. Maybe if you are going fast with a car they get air cooling but if you plan on using them in a stationary position you should look out for overheating issues.
 
Samuel H said:
Quick self-promotion post: I'm almost finished with the design of my DIY LED fresnel lights. I have used them on two projects recently and I'm very happy with them, I just have to find a better on-off switch (I've already tried two options and they're too weak for a set, they break too easily) then I'll post a video presentation.

They're not "sun-competing" but they're relatively powerful: they draw approximately 100W, and match an 800W tungsten fresnel in terms of output. Nice CRI 93 LED and optical-grade glass (it's not actually a fresnel lens, I use glass intended for prescription glasses to get better transmission and higher output), dimmable, with no flicker at any frame rates I've tried (up to 960 fps), and able to work for an hour out of a $80 1Kg (2 lb) LiPo battery. And talking about weight, the head is like a cube of approximately 10x10x10cm weighting just 550g (that's 4x4x4" and 1.2 lb) (it does have an open-face fan but it's almost silent).

I'll be selling these for around $350, but I don't plan on selling many of them because getting the certifications for everything to be "clean" is just a pain: it's a DIY project and I just want to get some of my investment back, plus the feeling that I made something that other people like :)
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Looking forward to seeing some tests!
 
I bit the bullet and decided to roll the dice on the F485 55k unit. Free time will be limited over the holidays but if anyone wants to know anything about this unit I can try and put a review together or show some test shots if there are any specific questions.
 
FrameFarmMedia said:
I bit the bullet and decided to roll the dice on the F485 55k unit. Free time will be limited over the holidays but if anyone wants to know anything about this unit I can try and put a review together or show some test shots if there are any specific questions.
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Happy NY! Have you had a chance to play around with these lights yet? I'd love to hear your thoughts, or better yet, see a comparison review with familiar fixtures side by side.

Thanks in advance!

O
 
ozmorphasis said:
Happy NY! Have you had a chance to play around with these lights yet? I'd love to hear your thoughts, or better yet, see a comparison review with familiar fixtures side by side.

Thanks in advance!

O
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I would love to see it compared in real life too!

Here is some additional information I've found:

Apparently F-485 is a rebranded a Chinese product http://www.falconeyes.com.hk/Product.aspx?id=1593
I guess "CLL-4800R" is the same F-485 5500K (with $1169 price on ebay, btw http://www.ebay.com/itm/191844366816)
There are a photometric information on their page which you can compare to a classic halogen arri lights

2017-01-07_03-17-18_clipboard.jpg

2017-01-07_03-20-40.jpg

So I tend to agree with a Giuseppe's 3 star review here https://www.bhphotovideo.com/c/product/1259266-REG

UNLESS in real world things are different...
 
Apa6ek said:
I would love to see it compared in real life too!

Here is some additional information I've found:

Apparently F-485 is a rebranded a Chinese product http://www.falconeyes.com.hk/Product.aspx?id=1593
I guess "CLL-4800R" is the same F-485 5500K (with $1169 price on ebay, btw http://www.ebay.com/itm/191844366816)
There are a photometric information on their page which you can compare to a classic halogen arri lights
Click to expand...

Oh I thought that was a given: http://www.falconeyes.com.hk/Product.aspx?id=1593

Actually I just came across these new 200W/400W/600W/1000W LED lights from the same company (it's not on the HK website yet):
https://www.aliexpress.com/store/pr...0K-GEO-G10-For-Video/2204116_32764857419.html

Wow those are heavy and expensive though... can the 1000W one really be 90lbs?? And odd that it has 144 10W leds but is rated 1000W and had the ouput of an 800W HMI. The 400W is a bit more reasonable but for the price and weight and lack of functionality it seems pretty odd. Could be a sign we'll start seeing kinda barebones but bright LED array lights like that at much lower prices soon though. Cut the price and weight in half, add interchangeable lenses and then we might have something.
 
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Did I ever tell where I went.

I bought 2 200w lupo fresnels and 2 100w lupo panels. Sun competing? Not really, well maybe if close. But IMO a good 'package' for the 1-2 man band.

Ill post images as I get them.

Here is a single panel bounced off a 6.4 poly about 5ft back from the talent. This scene was basically backlit naturally

Simple fast setup.

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