Your lights need to be off for 12 hours per day (with the exception of autoflowers, of course). Keeping them on longer can result in your weed plants switching back to vegging and then you’ll have a hard time getting them to flower again. During vegging, you have much more flexibility.
- 1 How far should T5 lights be from plants?
- 2 How long should I leave my grow light on?
- 3 Should I leave a grow light on 24 hours?
- 4 Are T5 lights good for growing?
- 5 Is T5 better than LED?
- 6 Do grow lights use a lot of electricity?
- 7 Can plants get too much artificial light?
- 8 Can a plant get too much light?
- 9 Can you leave grow lights on 24 hours a day tomatoes?
- 10 Should lights be on during germination?
- 11 Do plants need to rest at night?
- 12 How much does it cost to run a T5 light?
- 13 How long do T5 grow bulbs last?
- 14 How many watts is a T5 grow light?
How far should T5 lights be from plants?
Although T5 lights are famous for emitting very little heat, this doesn’t mean you can put the bulbs an inch above plant canopies, as this distance will still damage the plants. The best height for a T5 grow light is about 6-8 in. above the plants, but you should increase that gap to 12 in.
How long should I leave my grow light on?
To be effective, grow lights really need to be on for at least 8-10 hours a day. This can vary up to 16 hours, depending on the conditions. That’s why LED grow lights are so popular – when they have to be left on all day, it’s best to use an energy efficient type! Always position a grow light above the plant.
Should I leave a grow light on 24 hours?
A: In general, you should not leave grow lights on 24/7. Plants need a light-dark cycle to develop properly. It’s believed that they truly do “rest” during periods of darkness, and probably use this time to move nutrients into their extremities while taking a break from growing.
Are T5 lights good for growing?
T5 fluorescent bulbs supply high light intensity with very little heat, making them a good choice for growing plants indoors. A combination of cool spectrum and warm spectrum T5 bulbs supplies the needed blue and red wavelengths for optimum plant growth.
Is T5 better than LED?
The main advantage of LED over T5 lights is that it is more efficient, which will save cost (bulbs & power) in the long run. LEDs also do not produce UV light by default (unless UV diodes are used), while florescent lighting does.
Do grow lights use a lot of electricity?
Grow lights don’t use as much electricity as you may think. However, since most grow lights are so energy efficient, you are getting huge amounts of light (and growing power) for your money! Make sure your grow room’s power circuit can handle the power draw.
Can plants get too much artificial light?
Duration of Light Most houseplants do well with 12-16 hours of artificial fluorescent light each day. Too little light will result in elongated, spindly growth and too much light will cause a plant to wilt, color to fade, soil to become excessively dry and foliage to burn.
Can a plant get too much light?
Plants cannot get too much light, but they can get too much of the heat energy that comes with the light. Photosynthesis and other plant growth processes will shut down when the environmental and tissue temperature gets high enough that all the water taken up by the plant is used to cool the plant tissue.
Can you leave grow lights on 24 hours a day tomatoes?
Scientists have found a gene in wild tomatoes that enables farmed tomato plants to be grown 24 hours a day under natural and artificial light, boosting yields by up to 20 per cent.
Should lights be on during germination?
First, true enough, light isn’t necessary to germinate most seeds: the majority are perfectly capable of germinating in complete darkness. But there is a significant proportion of seeds that will not germinate if they aren’t exposed to light. This includes maybe a third of the plants we commonly grow from seed.
Do plants need to rest at night?
First up: plants. So, do plants sleep? I posed the question to several plant experts and the short answer is no, at least not in the literal sense. But plants do have circadian rhythms tuned to Earth’s 24-hour light-dark cycle, which they maintain even if they’re kept in light fulltime, just as we do.
How much does it cost to run a T5 light?
So running two 4 foot panels with 4 lamps each and 12 hours per day, cost me around 62 cents per day. This adds up to around $19 per month. That’s roughly $226 yearly. I only use my lights from October to the end of March.
How long do T5 grow bulbs last?
Time: With typical daily photo periods of 8-12 hours, T5 bulbs carry the average life-span is 9-12 months. If it’s been more than 12 months since your last bulb change, it’s probably time for a change.
How many watts is a T5 grow light?
The wattages for standard T5 lamps are 14, 21, 28, and 35 watts. The high-output T5 (T5 HO) lamps are available in 24, 39, 54, and 80 watts (49-watt T5 HO lamps are also available from GE Lighting).