what abotu tha blacklights

[LiGhT420]

ok i have had like 3 or 4 ppl tell me to use a blacklight but then i have read that its dosin help your plants and that its just a waste of time just looking to find out the truth so stinky if you could help or anyone who knows if this is true or not help sorry for all tha noob posts lol this is my first grow

LiGhT420 Reviewed by LiGhT420 on 04-17-2008. what abotu tha blacklights ok i have had like 3 or 4 ppl tell me to use a blacklight but then i have read that its dosin help your plants and that its just a waste of time just looking to find out the truth so stinky if you could help or anyone who knows if this is true or not help sorry for all tha noob posts lol this is my first grow Rating: 5

[WaZ]

Full, natural sunlight consists of the entire electromagnetic spectrum. Black lights typically don't go over wavelengths of 400 nanometers whereas visible light alone goes up to 700 nanometers.

I don't know what specific benefits that could yield. Green light, however, can be used during a night cycle to see the plants without disturbing them.

[Delta9Haze420]

Indeed, black lights are usually near to or in the UV range, from about λ 350-400nm (peaking at around 370-375). *NOTE* Other common UV lights may emit peak light levels around λ 360-365nm; one such device is a Woods Lamp, frequently used in forensics and medicine. In either case, this is nowhere near the spectrum that plants need to actively photosynthesize. Most plants have an absorbance spectrum similar to the graph illustrated below, which includes reds, yellows, oranges, and blues (but very little green, which is why we see green leaves - green light is the prominent spectrum that is reflected and not absorbed by the plant). As you can see, chlorophyll a does reach into the UV range, however only marginally and on a declining slope. Chlorophyll b does as well, though at even lower levels. A much better investment (in all aspects) would be to go with full spectrum visible light output devices (or sunlight), as these are the spectrums used in photosynthesis. Hope this helps :smokin:.

[Delta9Haze420]

One last bit of advice - UV lights CAN provide one benefit that VisSpec lights don't, and that is antimicrobial and bacteriostatic action. Usually lower λ levels are required for this, but it does greatly reduce the risk of microbial infection to the plant (although in practical terms may not be worth the effort, time, or money). These types of lamps are often used in biohazard areas where aerosolized particles of microbes may pose a threat to personnel and the retention of living or active organisms/viral particles is not required.

[the image reaper]

do NOT use UV 'blacklights', entirely wrong spectrum for your plants ... :wtf:

[LiGhT420]

Thanx everyone for your help i just put tha plants outdoors for some of that good natural sunlight im not gonna grow indoors i do not have all the stuff i need and i kinda have to keep it on tha downlow cuz of my roommates they dont smoke and they like to bitch alot about me smokeing lol so yeah i put them out side and within the next day or 2 im gonna find a good place for them i planted 5 and 4 came up so thats not bad but thanx for tha help sorry for all tha noob ?s

[the image reaper]

introduce them to sunlight slowly ... place it in shade for first day, and half-shade a couple days ... full sunlight is too much, all at once :jointsmile:

[LiGhT420]

ok thanx but i had them in my window when they came up and for about 4 days after they came up so do ya think it would still be ok to just put then in tha sun