Black lights are good for your plants Controlled studies have shown a significant positive effect on a plants health + metabolism/growth - particularly in young plants - when common black lights have been used in conjunction with HID lighting. Most black lights have a wave length of 300 to to 450 nanometers which puts them in the far blue/violet spectrum with most fixing in about 400 nanometers. Far blue or UVA wavelengths - would be those produced by a rising sun. So if you so desire - I recommend placing your black light in your chamber and timing it to come on 30 minutes before your other lights and turn off 30 minutes into your regular light cycle
How much difference are we talking about with and with out black lights ? Would it make any significant difference in small scale grow?
Just checked the different ranges of light in my new LED lamp and I like what I found 430nm (90 degree lens) - Focused Chlorophyll A Support 460nm (90 degree lens) - Focused Chlorophyll B Support 630nm (60/90 degree lens) - Focused/Intense Penetration Chlorophyll B Support 660nm (60/90 degree lens) - Focused/Intense Penetration Chlorophyll A Support 3000K (120 degree lens) - Wide dispersion auxiliary pigment support 6500K (120 degree lens) - Wide dispersion auxiliary pigment support 9000K (120 degree lens) - Wide dispersion auxiliary pigment support 730nm IR (120 degree lens) - Helps regulate internode length and other metabolic functions, increases "Flavour" intensity and aromatics 400-410nm UV (120 degree lens) - Growth regulator/sterilant
How much is that lamp Beeze? thats a serious piece of kit. R076 - It is quite difficult to quantify - particularly when you account for all of the other factors which effect growth - We often talk about idyllic conditions - but even deciding what that is - can be controversial. The impression that I got was that plants would be significantly more responsive to blue light in the morning - and whether or not you plan to actually use a black light - utilising this principal is simple and in theory - should boost your overall efficiency somewhat. Black lights produce about twice the heat as an equivalent CFL, - but that's not really an issue if the light produced is of a very high PAR value. As far as i can tell - Heat isn't a waste product in a cold climate - my thermostat maintains the temperature - if my room emits more heat - I burn less gas.
This LED is the absolute best value in LED that I have found, hands down. I paid just under $300 for each light. I thought it would be nice to see a picture with lights on and off. This model is a 380w (actual draw is 250 watts. I put it on a meter myself) This light is unfortunately discontinued, but will be returning with a new model soon.
Nice -You yankees get all the good kit first - for Example - there is no such thing as conversion bulbs in the UK - LED's are either imported from the US or China - We even have to wait for movies - I just watched E.T. at our local cinema...