Fluorescent fixtures
I just read the instructions (dumb idea, I know) for some fluorescent fixtures I bought sometime back, for my shop. Anyway, it says the fixture is only for 2700K, 3500K, and 4100K tubes. Why does the fixture/ballast care what phosphor is in the tubes? I was planning on using 6500K tubes (like I have in similar fixtures). If there is good reason to respect these instructions, I'll probably change them over to LEDs but it's a lot of tubes to trash. The coldest white LED tubes I've seen are 5000K. I'd prefer 6500K but 5000K would probably work. |
Fluorescent fixtures
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Fluorescent fixtures
On Wed, 6 May 2020 09:17:27 -0500, Leon lcb11211@swbelldotnet wrote:
On 5/3/2020 5:47 PM, wrote: I just read the instructions (dumb idea, I know) for some fluorescent fixtures I bought sometime back, for my shop. Anyway, it says the fixture is only for 2700K, 3500K, and 4100K tubes. Why does the fixture/ballast care what phosphor is in the tubes? I was planning on using 6500K tubes (like I have in similar fixtures). If there is good reason to respect these instructions, I'll probably change them over to LEDs but it's a lot of tubes to trash. The coldest white LED tubes I've seen are 5000K. I'd prefer 6500K but 5000K would probably work. Perhaps it has more to do with the reflector than the electronics. I'd thought of that, though the plastic diffuser. There is no reflector, other than the white interior (it's an untra-cheap fixture). Too light and it may need a cancer warning label. ;~) Californica, for sure. |
Fluorescent fixtures
|
Fluorescent fixtures
Hawk writes:
On 5/3/2020 6:47 PM, wrote: I just read the instructions (dumb idea, I know) for some fluorescent fixtures I bought sometime back, for my shop. Anyway, it says the fixture is only for 2700K, 3500K, and 4100K tubes. Why does the fixture/ballast care what phosphor is in the tubes? I was planning on using 6500K tubes (like I have in similar fixtures). If there is good reason to respect these instructions, I'll probably change them over to LEDs but it's a lot of tubes to trash. The coldest white LED tubes I've seen are 5000K. I'd prefer 6500K but 5000K would probably work. You'd probably have a greater response in the alt.home.repair group but Highly unlikely, even assuming one can wade through all the non-topic garbage. as far as I know from working with lamps and fixtures for many years, the K value does not have a major impact on energy usage. I would not know why they establish a limit. The ballast care about the power consumption (watts) of the tube(s), which typically range from 65 watts to 110 (usually labled HO, or high-output on the bulb) watts. The color temperature doesn't generally change the wattage requirements, but other factors (producing more light with weaker phosphor) may require the bulb to consume more power. The ballast will be labeled as to how many watts it supports and the bulbs will list their power consumption. |
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