New light, broken fan, 100F temps...yup. UV filter light?

I finally got a 400w MH light. The thing is hot as hell though. It raised the temps in my area from a nice 72 (under floros) to roughly 85. (with the fan on contsantly.)

Now, The light has a 400w MH "UV Filtered" M59 bulb in it.

Here is a link that I found online about the bulb. M400U - hid - metal halide light bulb lamp - donsbulbs - light bulbs lamps valve valves tube tubes

It says that it is UV Filtered on the side of the bulb.

Is this light going to be okay for growing? or is the UV light something that is required ?

They seem to have really filled out with foilage compaired to just a couple days ago when they were under the floros.




So the fan that I was using as an exhaust took a shit and I'm assuming worse case senerio that the temps in my area climbed up to 100F and maintained at that level for several hours. (5-12 hours). The max temp that was reached was 100F according to the temp gauge.

So I misted them and they are in a dark period at the moment. They have been on 24hr light pretty much for the last 2 months with random dark times off.

Most of them look perfectly fine but there are a couple that look rather weak now, the fan leave stems have became really limp causing the fan leave to drop. Compaired to before the heat wave when they were strong and firm.

is there anything else that I can really do in order to revive these girls?


Thanks,
Mr. Bud

Research has demonstrated the essential contribution that UVB (320-280nm) makes in the production of THC. Plants grown in the presence of UVB light, specifically in the neighborhood of 270-280nm will experience an increase in their THC potency as well as their trichomal density.

Please be aware however, that UVB is dangerous to both plants and animals and too much UV radiation can and will fry your plants. Moreover, UVB can cause cataracts, blindness, and cancer.

Finally, be it known that every air-to-glass (standard glass) boundary filters out approximately 90% of the UV radiation present, so you might consider careful management of your fixture lenses.

Oh yeah, bring the temperature down and perhaps buy some Advanced Nutrients "Revive", which is intended to nurse stressed-out plants back to health.

I found that my plants grew a lot faster on an 18/6 cycle rather than 24/0. Now they have stalks as big as a AA battery. Plus, that will lower your temps.

Thaks for the useful info, mr greengeens.

good luck mr bud