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Growing your own weed is a lot of fun and very rewarding too. So, you have gathered all the equipment, or most of it, your weed plants are nearing the end of the vegging state and are now ready to begin flowering.
Hold up, because unless you have a full spectrum grow light, chances are you need to use a different light for flowering than for vegging. Yes, now you need to get a good flowering light for your pot, but what to get?
Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API
If you want great results, a 1000 watt bulb is a great way to go, but it also needs to be the right kind of light for flowering. This is what we are here for today, to help you find the best 1000 watt bulb for flowering.
Contents
What To Look For In 1000 Watt Bulbs For Flowering
Before you go out any buy just any old 1000 watt bulb for flowering marijuana plants, there are some considerations which you should keep in mind.
These include the following.
1. Lifespan
One big consideration to keep in mind when purchasing a 1000 watt flowering grow light bulb is what the lifespan of the bulb in question is lake.
Any half decent bulb should have a lifespan of 20,000 hours at the very least. The better ones will get closer to 30,000 hours of use before requiring replacement.
2. Lumens
You do also want to get a bulb that has a fairly high lumen output. The more lumens the bulb gives out the faster and better plants will flower, and the more plants you can flower with it.
A 1000 watt HPS bulb should have a lumen output between 120,000 and 160,000, and generally speaking, the higher the better.
3. Energy Efficiency
What you do need to keep in mind is that 1000 watt bulbs are going to use a lot of electricity either way, so if you can find one that is more energy efficient than the average, you are in luck.
4. Color Spectrum
When it comes to flowering marijuana plants, for the highest yields, the biggest buds, and most potent stuff, you need to get grow lights that emit the right spectrum or color.
When it comes down to it, orange and red light are the most important for flowering, so bulbs with 2000K output, give or take, are best for flowering.
5. Heat Generated
On a side note, 1000 watt bulbs, especially HPS bulbs, are going to generate a lot of heat, so you will need a cooling or venting system of some sort.
6. Lumen Depreciation
The other thing to think about here is that light bulbs do grow less efficient and powerful with prolonged use. In other words, the more you use them, the less lumens they give off.
Look for a bulb that has minimal lumen depreciation, as this will translate to have to replace the bulbs less often.
Best 1000 Watt Bulbs For Flowering: Top Picks
We have tried to provide you with a large selection of the best options, but do keep in mind that here we are talking about just the bulbs, not full scale grow light setups, so these reviews are going to be quite short, sweet, and to the point.
Also, keep in mind that these reviews are going to focus mainly on HPS or high pressure sodium bulbs, as these have the best color output for flowering pot plants.
1. Vivosun 1000 Watt HPS Grow Light
- 1000W VIVOSUN HPS bulb compatible with electronic and magnetic ballasts, 140000 Lumens, E39 Base
- Optimized red & orange spectrum and high PAR (Photosynthetic Active Radiation) to stimulate flower growth and enhance fruiting
- Extra-low Lumen Depreciation: Maintaining over 90% of initial lumen output after running for 5,000 hours
- Startup Time: Allow 2-3 mins for full bright; After power off, do please wait at least 5 mins before striking again
- Lifetime: 24,000 hours
Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API
If you are looking for a super high power and high quality marijuana grow light for flowering, then this Vivosun 1000 Watt HPS is a prime option to keep in mind.
First off, this thing puts out a whopping 140,000 lumens, which at a certain distance is more than enough to flower a few very large weed plants, and it does fine to produce massive and potent yields too.
This thing has enhanced PAR radiation and is heavy in the orange and red color output, which is of course ideal for flowering plants.
This thing features an average runtime of 24,000 hours, which is quite impressive, plus it has very low lumen depreciation too, as it will retain over 90% of initial lumen output even after 5,000 hours of use.
This bulb is compatible with electric and magnetic ballasts, but it does need a ballast.
Pros
- Long runtime
- Low lumen depreciation
- 140K lumen output
- Ideal for flowering a decent number of plants
- Compatible with various ballast types
Cons
- Requires ballast
- High energy consumption
2. EyeHortilux 1000-Watt Super HPS Spectrum Grow Bulb
Here we have a super high end and technologically advanced high pressure sodium grow light. This is for the serious grower that wants a high quality setup.
What needs to be said about the EyeHortilux 1000-Watt HPS Bulb is that it is an orange and red light heavy HPS bulb, which makes it excellent for flowering.
However, this thing has also been specially designed to give off up to 25% more green, blue, and violet light than your average HPS bulb, which makes this thing quite efficient for weed plants in the vegetative state.
More or less, this is a full spectrum grow light that can be used for all marijuana growth stages. Moreover, this thing puts out 145,000 lumens of light energy, which is indeed a heck of a lot.
You can easily use this thing for a few flowering weed plants, or even more if you get a nice reflector hood with it.
This bulb also has a fairly long lifespan, well over 20,000 hours, but you do need to be careful with it, as it seems to be very fragile.
Pros
- High lumen output
- Easily used for numerous plants
- Great for flowering
- Designed to be used for vegging too
- Good lifespan
Cons
- High energy consumption
- Produces a lot of heat
- A bit fragile
3. iPower 1000 Watt HPS Grow Light Bulbs
- High lumen output: 140,000 lumens output, compatible with electronic and magnetic ballast, E39 base
- Special designed for plant growth: designed specifically for professional hydroponic plant cultivation. CCT 2,100K, optimized red & orange spectrum and high PAR (photosynthetic active radiation) to stimulate flower growth and enhance fruiting
- Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5,000 hours
- Exceptional bulb life: 24,000 hours. New long lasting life with a high lumen output and high power efficiency
- Note: allow 3-5 minutes for full bright. Please wait at least 5 minutes after power shut off before striking again
Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API
Here we have a nice option to keep in mind in case you need a lot of 1000 watt bulbs for flowering. Here, you get a total of 6 iPower 1000 Watt HPS Grow Light Bulbs in a single package.
When it comes down to it, if you want to flower a lot of weed plants at once, and have the ballasts and mounts to make it happen, this is a good choice to consider.
Each of the 6 bulbs puts out over 140,000 lumens, which makes for a grand total of 840,000 lumens combined. If you have a good setup in your grow room, you could use these bulbs for potentially dozens of weed plants.
Keep in mind that these things are really heavy in terms of red and orange light output, plus have been enhanced for increase PAR, this stimulating great flower growth and blooming.
The 24,000 runtime of each bulb is quite impressive too. Just remember that these things do use a lot of power and generate a lot of heat too.
Pros
- Multi pack
- Massive lumen output
- Great for flowering
- Ideal for very large setups and lots of plants
- Good runtime per bulb
- PAR enhanced
Cons
- Use lots of watts
- Run very hot
4. Explux High-PAR 1000W Super HPS Grow Light Bulbs
Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API
If you need a bulb that puts out a heck of a lot lumens, these Explux High-PAR 1000W Light Bulbs are a great way to go.
Here, when you purchase one pack, you get two bulbs, so do keep that in mind. Each of these bulbs puts out an insane 160,000 lumens, so if you set it at the right distance, you can easily flower up to 10 plants, and with the right setup, so lots of reflective materials, potentially twice that amount.
These bulbs are PAR enhanced, plus they are heavy in red and orange light output, both of which contribute to amazingly large, potent, and tons of buds.
These bulbs have a lifespan rated for 24,000 hours, although its closer to 20,000 hours, so not the best out of all options out there.
The only really bad part about these bulbs is that they depreciate pretty fast and start losing lumen output pretty rapidly, plus they do produce a good deal of heat, while also using lots of energy.
Pros
- Great for flowering
- Good for a lot of plants
- Heavy in red and orange light output
- PAR enhanced
- Compatible with most systems
Cons
- Pretty rapid lumen depreciation
- High energy usage
- Produce a good deal of heat
5. Apollo Horticulture GLB HPS 1000 Watt Grow Bulb
- E39 Base 1000watt Apollo Brand HPS bulb compatible with electronic and magnetic ballasts (138,000 Lumens)
- High Pressure Sodium's Light Spectrum Stimulates Flower Growth and enhances Fruiting
- 2000K Red-Orange Spectrum, Designed specifically for Professional Hydroponic Plant Cultivation
- Expected Bulb Life: 24,000 Hours Improved Lamp Life and Lumen Output, 110V power voltage
- Startup Time: 10secs allow 3-5mins for full Warm up. Please wait at least 5mins after power shut off before striking again.
Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API
Here we have a pretty average 1000 watt GPS grow light bulb, nothing super special or overly fancy, but it works well for flowering quite a few plants at once.
This particular option puts out just over 135,000 lumens, which is not too bad all things considered. With the right distance from the plants, and with the proper reflective materials, you could flower somewhere in the neighborhood of 5 to 10 weed plants with this thing.
That said, do keep in mind that this kind of HPS bulb eats through electricity, and produces a lot of heat too. The Apollo Horticulture GLB HPS 1000 Watt Grow Bulb does have a 24,000 hour lifespan, which is pretty decent.
This is a 2000K spectrum light that puts out a lot of orange and red light, so it is rather perfect for flowering pot plants. Just keep in mind that you cannot turn this light on and off rapidly.
It takes 3 minutes to get to full brightness, and cannot be turned back on for 5 minutes after being shut off.
Pros
- Lots of lumens
- Good for flowering quite a few plants
- Long lifespan
- Quite durable
Cons
- Startup time is long
- High energy usage
- Lots of heat generated
6. VIVOSUN 1000W Double Ended HPS Grow Bulb
![VIVOSUN 2 Pack of 1000W Double Ended High Pressure Sodium DE HPS Grow Bulb - Super Lumens 151,000 for Flourishing Growth [CCT 2100K]](https://m.media-amazon.com/images/I/51bpbX6YUnS._SL160_.jpg)
- Intense, Tailored Light SpectrumI: Ultra-bright at 151,000 Lumens with optimal PAR output, this lamp falls at 2100K in the red and orange spectrum to stimulate lush, abundant harvests
- Double Ended for Superior Results: Quality double ended system delivers the highest quality light evenly and without obstruction and lasts almost twice as long as a single ended lamp
- Economical and Energy Efficient: This double ended HPS model provides 35% more available energy than a single-ended HPS lamp; Enjoy heavier harvests and lower energy bills
- High Quality Units: Precision built components precisely render the most nourishing spectra for your plants; Premium Quartz exterior won’t distort or dull light output
- Great Products: VIVOSUN is devoted to making high-quality products; Products arrive packaged discretely to protect your privacy
Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API
Right off the bat, do keep in mind that this is 2 pack of HPS bulbs. Now, these are very unique HPS bulbs, ones that you don’t see very often.
These are double ended bulbs, which means they have very special connection points and will not work with a normal ballast or normal screw in light bulb fixture.
This thing requires a special double ended grow light fixture that comes complete with reflective properties and a high quality cooling system. This thing produces a lot of heat, so a special cooling ballast is necessary.
That being said, each of these VIVOSUN 1000W bulbs puts out well over 150,000 lumens of light energy, for over 300,000 lumens total, and with the right setup, you can easily flower many plants with both of these combined.
What is nice about this thing is that double ended HPS lights use up to 35% less energy comparably, so they are pretty economical. Of course, this is a 2000K orange and red heavy grow light, making it very ideal for the flowering of pot plants.
Pros
- Energy efficient
- Massive lumen output
- Ideal for flowering
- Very durable
- Slow lumen depreciation
Cons
- Require a special and expensive mount
FAQ
What lights are best for flowering marijuana?
Generally speaking, HPS lights are going to be best for flowering marijuana, with full spectrum grow lights also being a decent option.
How many lumens for flowering weed?
For the best results, you want at least 7500 lumens per square foot, for the biggest and best yields.
What color is best for flowering pot?
For the flowering of marijuana, the best colors on the spectrum are red and orange, which translates to around 2000K on the color spectrum
Conclusion
The bottom line is that a good 1000 Watt HPS grow bulb is probably your best bet if you want really big yields, big and solid buds, and potent chronic that smokes nicely.
Keep the purchasing considerations in mind which we discussed in the beginning, and give some serious consideration to the various bulbs which we reviewed here today.
