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Discussions about fluorescent, LED and other types of grow lighting for Venus Flytraps and other plants

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By P A U L
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Posts:  180
Joined:  Mon Jan 29, 2018 5:04 am
#310646
I have 4 plants in 4-inch pots (2vft, 2sundew) on a windowsill. I would like to install these lights 3-feet overhead: https://www.amazon.com/gp/product/B00MR ... 4WN81ZEM06

It's a thin bar with 30 LEDs (SMD 5050). Apparently the whole strip is 6-watts (not sure what their equivalence to a incandescence bulb would be...if this makes sense).
Beam angle 120deg. 6500k

Would these be sufficient to keep my plants thriving?
By KategoricalKarnivore
Posts:  1769
Joined:  Wed Aug 24, 2016 5:00 pm
#310650
First off that would never work 3 feet above the plants. Second, that light doesn’t even come with an adapter to plug into the wall.
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By P A U L
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#310655
damn. that's what i suspected.

what if I hanged 2 60-watt CFLs overhead? the bulb would probably drop to about... 1~2ft above the plant.

i could adjust distance with the cord i was thinking of using.


bulb: https://www.amazon.com/gp/product/B00FK ... ZUQ2FCU4MN

bulb line/cord:
https://www.amazon.com/gp/product/B00L5 ... PDKIKX0DER
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By P A U L
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#310720
nimbulan wrote:You'd still need a reflector of some sort to focus the light down onto the plants. Light intensity drops exponentially with distance, though you can reduce that effect with reflectors.
someone gave me the idea of using a disposable aluminum pie pan around the bulb. that should work, right? i suppose i could give it a slight bend for a more "taco" shape like the commercial shop lights @ home depot/wal mart.

think i'll really need two bulbs for 4 plants?
By KategoricalKarnivore
Posts:  1769
Joined:  Wed Aug 24, 2016 5:00 pm
#310726
With those bulbs you will need to be about 5-6 inches above the plants.
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By nimbulan
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Joined:  Fri Feb 28, 2014 9:03 pm
#310728
Yeah I think you'd have a hard time mounting them much further away, even with a reflector. The 1600 lumens produced would need to be focused down to an area about 1 square foot in size or less which isn't really feasible from a long distance.
nimbulan liked this
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By P A U L
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Joined:  Mon Jan 29, 2018 5:04 am
#310941
so I got super geekcited when i got my lamp and bulbs. will this work? i put it on a timer outlet so the lights are automatically on/off 6am to 6pm. deviated a lot from original plans thanks to the tips from everyone.

there's also very very very little end of the peace lily leaf stealing some light. it likes the shade so i figure i'd allow it some negligible amounts of photosynthesis while it feeds off the light bouncing off that mirrored building across the street.

the sundews are sitting in 2 trays. a larger tray has a few teaspoons of apple cider vinegar with a drop of Dawn dish soap. another tray that is barely smaller, has distilled water only with the pot sitting in the water.
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lol and it's also getting direct morning sunlight around 10am from the southeast. top path is around summer...lasts about 60~75 minutes. bottom path is around winter time...lasts about 45 minutes. this picture was taken before the lamp.
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Last edited by P A U L on Thu Feb 08, 2018 7:10 pm, edited 1 time in total.
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By P A U L
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Joined:  Mon Jan 29, 2018 5:04 am
#310969
i still need more lamps. this will totally not suffice. :lol:
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