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Old 04-21-2015, 04:25 PM   #1
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LED tubes?


I live in the north where it's dark and winter most of the time. This year I've started growing indoors as it is a short season here. I've got two 2lamp T8's 6500k. I've had a good turn out, but this set up is not ideal. I've looked into LED tubes for fluorescent fixtures, but I couldn't find any greater than 5000k, I was also wondering about their lumens. Anyone have any input or suggestions for improving this set up?
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Old 04-21-2015, 05:15 PM   #2
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LED tubes?


What type of tubes are you using ?

There is a difference between a 6500k daylight tube, a 6500k full spectrum, and a grow light. If you are using the ordinary "daylight" tube, I would try either a full spectrum or a grow light.

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Old 04-21-2015, 05:31 PM   #3
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LED tubes?


They are day light. But I was looking for something as good, but maybe more efficient. Power is not cheap here
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Old 04-21-2015, 05:58 PM   #4
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LED tubes?


There are a number of LED T8 replacement tubes out there. The ones that I know of require you to bypass or remove the ballast.

I do not know anyone that has used them, so I have no idea how they compare to fluorescent or HID grow lights. All I know is that they are Pricey !
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Old 04-21-2015, 06:21 PM   #5
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LED tubes?


I would suggest you look a little more for full spectrum fluorescent grow lights. LED tube lights are not too common. Then you will find there are 3 types of LED tube lights:
1- has internal driver and you have to remove the ballast from your fixture
2- has external driver and you replace your ballast with an LED driver.
3- has internal driver that survives the voltage spikes of your ballast
If you really want LED, try Philips - they have some LED tubes of the third type and are pretty reasonably priced. Still a lot more than a fluorescent tube. You are unlikely to find them at the big box store --- try an electrical supply house.
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Old 04-21-2015, 07:13 PM   #6
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LED tubes?


Thanks guys. I don't mind paying a little up front if it will save me some on the power bill.
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Old 04-21-2015, 09:59 PM   #7
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LED tubes?


My office and machine shop use 7600K T8 LED strip bulbs. I had to modify the fixtures and remove the ballasts -- the bulbs said they would work with ballasts, but that was not the case, at least not in the T8HO fixtures I had.

I haven't used them as grow-lights but they have a much higher color temp than daylight.

There are specific LED strip bulbs for growing plants that use red and blue LED's in addition to white, to ensure the best spectrum for plant growth.

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