How to
UV Curing

CannabisThis information is only for use in states where cannabis (marijuana) cultivation is legal.
Just so you know, we've been in business since 1985, we aren't a "start up", we are ultraviolet experts that have shipped a couple million lamps to the US and Canada over the years. We have helped growers specifically for a decade and no one has more experience doing so. This is why we guarantee results, we publish real results and testimony. All UV lamps are not made the same.

How did a highly experienced professional grower go from 23% to 29%?. He used Flower Power lamps. This is from the same grow room, using clones, and standard metal halide bulbs. The tests were performed by SC Labs, an industry leader in marijuana/cannabis testing. Our customer chose the lab and paid for the testing, not us, so the results are 100% independent of us. The left image is the 23% THC, the right is 29%. You can see how it is more compact, more potent. Looking up close, you can see it is much more coated when using Flower Power than without. You can click on the image for a larger version of that image in a different window.

Without Flower Power 23% With Flower Power 29% THC

We guarantee you great results. Our lamps are up to 50x stronger than reptile and similar UVB lamps. We have worked with universities, experts and growers nationwide to produce solutions for increasing flavonoids and resins in a variety of plants, from tomatoes, peppers, ornamental plants, and of course, for cannabis. There are a lot of UVB lamps out there, but none are as strong nor as finely tuned as Flower Power, the first and only UVB lamps designed specifically for your needs. Keep in mind, this isn't the most impressive case we have on file, just the one with the best pictures. We understand that seeing is believing. This is a 26% increase, we have many cases that are 30%, 33% and higher. No one gets less than 20% their first time with our lamps. The above example is a "first effort" using only a couple hours per day: they still haven't maximized the potential.

Total cannabinoid production went from 231.1 mg/g to 291.1 mg/g.

Growing in tents

This means the lamps have to be very close to the plants, which means you want to use the Universal UV. This is a 4 foot long, 1 inch diameter lamp that will work in ANY 4 foot 32 watt fixture. If you are growing standard plants, you would run them up and down in the corners for a small tent (4'x4') or you can run them overhead for larger tents. The Universal is a strong lamp but has a spectrum that allows you to get very close to the plants. The Universal is a fairly safe lamp to work with in this respect. Most people would go buy 4 single bulb shop light fixtures from Lowes or Home Depot. The lamps have a reflector built in, so you don't need to worry about a reflective hood on the fixture. The lamps can be started around 8 hours per day once flowering begins and rapidly moved to the full 12 hours. You need 4 Universal UV lamps per 1000w hood (or equivalent). The Universal UV lamps will last two flowering seasons. If you are scrogging, then you would put the lamps overhead, aiming for maximum coverage.

You may also use the SG-1-40 lamps. They are also 4 foot long, but thicker at 1.5" in diameter. They are actually a bit weaker in UVB than the Universal lamps, but they have a better spectrum for growing. The same rules apply, but you can use 4 to 6 per 1000w hood, up to 12 hours per day. They are good for 3 flowering seasons, so are more cost effective. We have a lot of testing with both lamps, averaging over 20% higher THC from the first time they are used, and going up as you get experience in placement.

Growing in rooms

You want to use the Flower Power lamp. This is a 4th generation lamp, and 12 years in the making. It is based on the SG-1 series of lamps and uses the same patented glass for higher UVB transmission, but it is supercharged in the UVB output, reaching down below 290nm, something the sun does but regular UV lamps can't. This is the most powerful portion of the UVB spectrum, making these extremely effective. We already have THC content tests proving Flower Power maximizes THC content. It is like having growing 12 plants, and getting 3 or 4 free plants at harvest time. By replacing and enhancing the UV that the plant doesn't get when growing indoors, you WILL boost THC. All tests have shown CBD to remain the same or increase a very small, insignificant amount.

The Flower Power is the same size as the SG-1-40: 4 foot long, 1.5" in diameter, and can be used in any 4 foot long, 32 watt (or 40 watt) single bulb fixture. You need two of these lamps for every 1000w hood you have. We are still testing maximum times, but many are running the lamps for 4 hours per day, in 1 to 2 hour bursts, during flowering. Likely, they can be run more hours than this, but it depends on your particular hybrid. This beefs up trichome production and THC in the most significant way it can be done. We have never had a lab result show less than 15% on the first trial, or show less than 20% on the second trial. We have had customers report well over 30% increases in THC production. The science is in, there is no question it works, and it works with whatever else you are doing.

Another advantage of the Flower Power lamps is the ultra high frequency UVB is good for suppressing mold and mildew. This is true for our other lamps but the Flower Power is much more powerful in this respect. The switching lowers life, but you should still get 3 flowering seasons (about one year) out of a set of Flower Power lamps. They will continue to burn of course, but the UV will drop down after this. Please note that Flower Power lamps are so strong, you must run them at least 18" (perhaps better at 24") away from the tops of the plants. This is one reason you only need half as many lamps. The individual lamps are more expensive, but they are actually the cheapest lamps when you consider total cost per growing season.


The only solution for greenhouses is the Flower Power lamp. They can be run at any height in the greenhouse, but at least 24". The farther they are from your garden, the weaker the UV, so the longer you must run them per day, up to 12 hours. They function as a broadcast light in this respect, and it holds true for tomatoes, peppers, cannabis, or whatever you grow. Many people don't realize that the glass and plastics used in greenhouses actually block all the UVB and most of the UVA. Using the Flower Power puts it back restoring the natural balance in the plant, making it create more flavonoids, turpines and/or THC in a natural way.

You can use the other lamps, by the way, but it is much more cost effective to use the Flower Power and standard "shop light" fixtures, minimum two lamps per 10' x 10'. Used like this and seldom switching, you should get around 1000 hours of use. This isn't maximum UVB, but it is a good supplement. Maximum would be close to 4 lamps in individual light fixtures, around 3 to 4 feet away from the plants, run 6 to 12 hours per day.

Why don't you make T5 lamps, the really skinny 4 foot lamps? (F54T5)

They don't work to our standards. We've prototyped them using two different engineering teams and built them at two different factories: they simply don't measure up due to the limits of the lamp size. This doesn't mean we never will, but our current lamps are 20 to 50 times stronger than the prototypes. It is a matter of physics, not effort or experience. The skinny lamps are fine for general lighting and do well, but creating UVB is another animal and requires much higher energy levels and surface area on the lamp. Putting reflectors in them is also a challenge. So we can make them now, but until we can make them so that they perform to our standards, we won't offer them to the public. We are still working on the problem, so stay tuned. Until then, the Universal UV is the best choice for thinner, up close UVB.

Final note

Our lamps are designed to run at regular power, or up to twice the regular power. Our "40 watt" bulbs are certified for 100 watts, for instance, so for some applications, this is good to know. Most people will not need this, and we design our lamps to use standard off the shelf light fixtures on purpose: it is cheaper to start, cheaper to maintain. For those of you that do have special needs to run higher output, just call Dennis at 1-800-600-8118. Again, we guarantee results and know that once you try our lamps, you will never go back to growing without. They pay for themselves many times over the first grow season, and put you ahead of the other guys.

More About Cannabis and UV lightingExplaining UV and CannabisComparing LED and fluorescent lampsMold, mildew and insects - Cannabis
Flower Power - Sale!
Regular price: $59.99
Sale price: $39.99, 16/$479.84
Universal UV FR32T8
Regular price: $79.99
Sale price: $39.99, 4/$120.00, 16/$400.00
Solacure Means Quality

Solacure ultraviolet lamps aren't just good, we guarantee they are the best. We don't use stock parts anywhere in our products. Our glass is a special blend, and more transparent to UVA and UVB. Our 32 watt lamps use 60 watt rated cathodes and are tested at almost 70 watts of power. Almost all our lamps have built in reflectors. All are designed to be overdriven to extra high wattages. We test, and test, and test our lamps.

We stand behind everything we sell and guarantee each will perform exactly to specification, or we will replace them. We don't want your business this week, we want it every week, and we are willing to earn it. There really is a difference in quality when it comes to ultraviolet bulbs, and Solacure tops the list.

Buy with confidence: We like what we do, and we've been doing it for over 30 years.
Email us - Facebook - Blog - Terms of Use

We accept all major credit cards for our uv curing lamps

Got a question? The best way is usually to email us using this handy form. We check mail after hours and on weekends, so it really is faster than calling when you have a simple question.