Hello
Background
I am being provided with 5 LED lights - the type of lighting used with video cameras, so each is basically an array of 300-ish LEDs in a single package.
I believe they are this model: http://www.neewer.com/10069627.html
I've been told they want 7.2 - 12V, and consume 18.24W - which is consistent with the link above.
Situation
To avoid previous issues with tangled spiderwebs of extension cords and excessive battery use with previously rented lights (these new ones are being purchased instead of rented), I have been asked if I can put together a single power supply box that we can plug all the lights into, and use some nicely weighted coilable cable. Ideally this would fit in (or could even be integrated into) the case we use to pack and transport the lights.
Building a PSU isn't so much of an issue (I've built a few toroidal PSUs for my CNC equipment) but for the sake of ease, cost, and a short timescale, I've been looking at picking up a pre-made powersupply.
Based on the requirements given, I reckon that I'll need something that can support 12V@7.2A (92.1W)
I can get my hands on the following SMPS within price and time constraints:
http://www.maplin.co.uk/p/power-pax-150w-switch-mode-acdc-multi-voltage-power-supply-n52kh
The SMPS provides 12V@12.5A (150W).
This should give me scope to support the five lights needed, and potentially a few more in the future. I'd rather run it under capacity than close to capacity, however.
Question(s)
LED flicker is an ongoing concern with video, especially as it's not always noticeable until you get to the editing stage. I've also always heard that SMPS are not the cleanest of power sources (which is why I build toroidal PSUs for my CNC kit).
So, my questions are:
All thoughts, comments, and answers are welcome, thank you
Background
I am being provided with 5 LED lights - the type of lighting used with video cameras, so each is basically an array of 300-ish LEDs in a single package.
I believe they are this model: http://www.neewer.com/10069627.html
I've been told they want 7.2 - 12V, and consume 18.24W - which is consistent with the link above.
Situation
To avoid previous issues with tangled spiderwebs of extension cords and excessive battery use with previously rented lights (these new ones are being purchased instead of rented), I have been asked if I can put together a single power supply box that we can plug all the lights into, and use some nicely weighted coilable cable. Ideally this would fit in (or could even be integrated into) the case we use to pack and transport the lights.
Building a PSU isn't so much of an issue (I've built a few toroidal PSUs for my CNC equipment) but for the sake of ease, cost, and a short timescale, I've been looking at picking up a pre-made powersupply.
Based on the requirements given, I reckon that I'll need something that can support 12V@7.2A (92.1W)
I can get my hands on the following SMPS within price and time constraints:
http://www.maplin.co.uk/p/power-pax-150w-switch-mode-acdc-multi-voltage-power-supply-n52kh
The SMPS provides 12V@12.5A (150W).
This should give me scope to support the five lights needed, and potentially a few more in the future. I'd rather run it under capacity than close to capacity, however.
Question(s)
LED flicker is an ongoing concern with video, especially as it's not always noticeable until you get to the editing stage. I've also always heard that SMPS are not the cleanest of power sources (which is why I build toroidal PSUs for my CNC kit).
So, my questions are:
- Would the SMPS electrical noise issue be likely to translate into flicker in the kind of LED lights we are using?
- If so, could this be mitigated in a way that is still easier than building a specific PSU, ie additional smoothing caps or other regulation?
All thoughts, comments, and answers are welcome, thank you