Whats a TC point?Nuggie wrote: ↑Sat Apr 13, 2019 4:47 pmRunning at 60W and being rated for 75W that gives you a 1.25 safety factor - your good to go.TerpyTyrone wrote: ↑Fri Apr 12, 2019 5:05 pmIf I do that it will run at 240w correct?
These are rated up to 75w , so I'm good to run em at full strength for long durations without problems?
Your advice is appreciated. I am new to the forum
On the driver side you'll be running it at full tilt. You should contact meanwell on whether you need a safety factor - each driver mfg will have their own recommendations. When I ordered my Inventronics drivers I asked their applications engineer if I could run at 100% and she said that the safety factor had already been built in over and above 100% but said that question is product specific. From another viewpoint my local electrician advised me to put a safety factor on the driver as low as 1.15 but target 1.20. An engineer with a lighting company that I saw on youtube advises to put a 1.25 safety factor on the driver so if you wanted 240W you would need a driver capable of 240 x 1.25 = 300W.
It ultimately is case specific as it depends on ambient temperature/cooling/how hard its run. These parameters will give you the case temperature of the driver - if you have the driver running in -20C at full tilt I wouldn't go with any safety factor. In the end its ultimately up to the end user but putting a temperature sensor gun ($20) on it and it will tell you all you need to know by checking the temperature at the TC point on the driver and then compare this to the driver spec's - this will give you the expected lifetime in hours.
The case temperature is also what the manufacturer would want to know should a warranty issue arise.
HLG-240H-C1750, 4 x qb132 build
-
- LED-Curious
- Reactions:
- Posts: 11
- Joined: Fri Apr 12, 2019 11:29 am
-
- LED-Curious
- Reactions:
- Posts: 11
- Joined: Fri Apr 12, 2019 11:29 am
Well I guess U will upgrade to the 320 verion next time so I can still use the 4 qb132 @60w and not be taxing the driver.
I guess I will see how hot it gets running wide open.
I imagine there wouldnt be a problem keeping it in the tent with the light.
In my model I have in mounted to the frame.
Its not even a sure if im keeping it in the tent yet.