bryansm

ummmm guys remember mj is just a plant. the only thing that makes MJ different is THC.

MANY MANY MANY other plants have trichs, they just dont contain THC and most are not nearly as resinous. on most plants trichs act like a thick jungle the bug has to crawl through to get anywhere near the actual plant tissue to feed, so most bugs usually just find a easier target.

but bugs do have the same nerve system as humans so the whole "bugs forget what they are doing" might play a role too.

but they do act as sunblock for the plant also. that's why the trich stalks seems to sparkle, they reflect light.


but on a serious note lol---imagine being a bug and finding a piece of almost pure THC the size of your body.
--hey guys come look...its... its...paradise--
i would be like cartman in cartmanland-"I am so happy" southpark reference.

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xtensity

Don't know if this is a dumb question, but don't plants want a lot of light..? Why would they block it?

Lou Cypher

The only block harmful UV-B rays, not light.

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visioneer

Hello, Thanks Lou, for that great information. Cheers

xtensity

I've read things that say using UV-B Lights will increase THC production, is this why? Does it damage the plants or something and provoke them to produce more trichomes?

So.... It's not the amount of energy they get that controls THC production but the amount of harmful rays they try to block?

Plants near equator are known to be more potent due to stronger rays. Do they produce more Trichs to block the greater power of the sun?

If this is the case how do people get dank headies grown inside under just cfls if they're not using any UVB lights? lol I have so many contradicting ideas in my head I've heard, trying to find out what's right.

Lou Cypher

Maybe its not scientifically proved yet but yes IMO that is petty much correct.

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visioneer

Great comment xtensity, That's why we progress our lighting. We start our plants under a hooded fluorescent then progress to CFL's and LED in conjuction. Then move to HPS plus UVB. So far this combination have really started to work well for us. Hope you work things out to achive your goals. Cheers!
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Sso

cfls have uvb, in fact cfls are basically ultraviolet light, its the coating on the bulb that turns it into other spectrums.

but some uv is unconverted.

visioneer

This question is to Sso based on this info. that I looked up. This basically contridicts your information.

1. Does GE sell any UVB emitting lamps (for use in aquariums and terrariums)?

No. GE does not make a UV-B lamp designed to keep reptiles, fish and plants healthy.

To improve the appearance inside your aquarium or terrarium, GE makes the F40PL/AQ Plant & Aquarium Wide Spectrum lamp. This lamp has a major emission in the blue and red regions with emissions in the UV-A (315 nm to 400 nm) and near IR (700 nm to 800 nm). The amount of UV-B is minimal.

See the complete line of lamps for aquariums and terrariums.

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2. How do I minimize UV radiation from fluorescent lamps?

Lamp manufacturers generally strive to minimize ultraviolet (UV) radiation in all lamps used in general lighting applications.

The amount of UV produced by standard fluorescent lamps, such as those in your office, home, or school, is not hazardous and does not pose a major health concern. In fact, a paper by the National Electrical Manufacturers Association (NEMA) explores this subject in more detail. It cites a study in which it was determined that UV exposure from sitting indoors under fluorescent lights at typical office light levels for an eight hour workday is equivalent to just over a minute of exposure to the sun in Washington, D.C. on a clear day in July.

Some applications require the absence of UV. To completely eliminate UV, we would recommend using CovRguard® shatter-resistant lamps. Where CovRguard is not available, UV sleeves or filters are also used to eliminate UV.

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3. Do light bulbs (such as compact fluorescent bulbs) give off hazardous amounts of ultraviolet (UV) light?

Regular fluorescent light bulbs used in your home and office do not produce a hazardous amount of ultraviolet light (UV). Most light sources, including fluorescent bulbs, emit a small amount of UV, but the UV produced by fluorescent light bulbs is far less than the amount produced by natural daylight. (UV light rays are the light wavelengths that can cause sunburn and skin damage.)

All of our light bulbs designed for general public use and minimize the amount of UV light emitted.

If you're looking for a low-UV bulb for an especially sensitive area, try our Saf-T-Gard® bulbs. They block most ultraviolet light emissions, and they're also shatter-resistant.

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4. Does an MR16 halogen lamp provide much UV?

Tungsten filament lamps, such as halogen and incandescent, provide minimal UV. GE's ConstantColor® MR16 lamps are made using special quartz, which has properties that enable it to filter out nearly all of the UV portion of the spectrum.

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5. Do Sunshine bulbs give off UV like the sun?

No. UVA and UVB output of fluorescent lamps, specifically Sunshine bulbs are minimal and comparable to other standard fluorescent lamps that you would find in places such as office buildings.

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6. What is the ultraviolet (UV) output of GE lamps?

The only full spectrum lamps GE manufactures are in the visible light range. They do not incorporate the ultraviolet (non-visible) output found in natural sunlight.

Full spectrum lamps in the visible range are designed to simulate the color range of sunlight. These include the sunshine, Chroma 50, and Chroma 75 fluorescent lamps. Visible light is found in the wavelength range of 400-700 nanometers and emits some UV, but the amounts are well below those found in daylight and sunlight, even when filtered through a window. These are not considered harmful. This is where normal, everyday use lamps (incandescent and fluorescent) fall.

For practical purposes, ultraviolet radiation is any radiant energy within the range of 100-380 nanometers. It is beyond the blue or violet region of the spectrum, and is invisible to the eye just like the silent ultrasound dog whistle is inaudible to the ear.

Incandescent lamps are not a source of ultraviolet radiation, and do not normally need UV filters. Incandescents do, however, generate heat (infrared radiation, or IR), which should be considered when illuminating plants or materials subject to drying damage.

The only lamps we make in this range are germicidal (UVC 100-280M) and blacklight / blacklight blue (315-400NM). We do not make any UVB lamps which are sometimes used for medical purposes or tanning beds.

You can find more information and spectral distribution curves in the Learn About Light section of our site.

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7. How can I find the surface temperature of a lamp?

GE does not publish the surface temperatures of our lamps because there are too many factors which can affect the measurement of the bulb wall temperature, such as:

The ambient temperature of the room?
Whether or not the surrounding air is still or moving (from wind, a fan, air conditioning, etc.) and at what rate?

The specific characteristics of the recessed fixture, such as its baffling, reflection, insulation, and ventilation properties.

For more information, contact your fixture manufacture directly. Fixture manufacturers are able specify the maximum wattage and bulb shape of the lamp which can be safely utilized in your fixture.

What is your source?

CamperDon

Good morning,

Well, I guess I won't be buying any of GE's bulbs when I want to get a UV-B reptile light