Topics

Toasty Kino

drew@...
 

Wrapped an event shoot last night, and we had a melty surprise:




Never experienced something like this before... This was a good ole' (rental) Diva-Lite 401 that we used as cyc light. Had some CTB on it about an inch away from the louver, which was still in pristine condition over the melted honeycomb. It was properly mounted in its bracket. We also had a 2nd Diva in an identical configuration that was, well, not melted at all.

Ran the light for a few minutes, the bulbs were quickly getting too hot to touch.
Even took another look at the instruction manual.... it's known that certain orientations (or if you "completely enclose the bulbs in gel") can cause a color temp shift, but never anything about heat safety concerns.

Any insights? 

Drew Lahat
Los Angeles, CA

sid firstframe.com
 

I’ve had a similar experience but not to that extreme.  I failed to allow for proper venting on the sides (used black wrap to keep light contained). I always place my gel on the outside flaps and never used the gel frame. Can’t tell if you placed the egg crate properly on the tabs but improper placement against the gel frame would create minimal ventilation..and yes those lamps do get hot.

SID LEVIN, Film+Edit
FirstFrame, Inc.
978.501.0488


From: cml-lighting@... <cml-lighting@...> on behalf of drew@... <drew@...>
Sent: Monday, July 2, 2018 5:10:20 PM
To: cml-lighting@...
Subject: [cml-lighting] Toasty Kino
 
Wrapped an event shoot last night, and we had a melty surprise:




Never experienced something like this before... This was a good ole' (rental) Diva-Lite 401 that we used as cyc light. Had some CTB on it about an inch away from the louver, which was still in pristine condition over the melted honeycomb. It was properly mounted in its bracket. We also had a 2nd Diva in an identical configuration that was, well, not melted at all.

Ran the light for a few minutes, the bulbs were quickly getting too hot to touch.
Even took another look at the instruction manual.... it's known that certain orientations (or if you "completely enclose the bulbs in gel") can cause a color temp shift, but never anything about heat safety concerns.

Any insights? 

Drew Lahat
Los Angeles, CA

Matt
 

drew@... wrote:

Wrapped an event shoot last night, and we had a melty surprise:
Working at Brooks Institute’s Equipment Rentals Department for over a decade, I have seen this far too often. Improper (not enough) ventilation.

Matt Efsic
DIT/AC/Mr. Fix-it
VENTURA, CA

John Rossetti
 

What was the point of the Louver anyway?

In my experience they add very little to the quality of the light.

 

John Rossetti – Pinewood London

 

sid firstframe.com
 

After mine melted I never replaced it.

SID LEVIN, Film+Edit
FirstFrame, Inc.
978.501.0488


From: cml-lighting@... <cml-lighting@...> on behalf of John Rossetti via Cml.News <john.rossetti=btinternet.com@...>
Sent: Tuesday, July 3, 2018 4:42:57 AM
To: cml-lighting@...
Subject: Re: [cml-lighting] Toasty Kino
 

What was the point of the Louver anyway?

In my experience they add very little to the quality of the light.

 

John Rossetti – Pinewood London