Quote Originally Posted by seventhchild
So how useful do you think these would be for the last 3-5 weeks of flowering? I would like to shorten the final ripening time. Also I notice the bulb you link to is a "enhanced spectrum" bulb doesn't this mean it has added blue? I can't seem to find a source for wavelength charts for this or any halogen bulbs.
Yes these bulbs will work good for the last 3-5 weeks of flowering. When I was told to use clear inc's for a far red 730nm spectrum.. I wasn't told how to correctly use them so to speak. I thought I was supposed to run them at the same time as the HID lights were on. But when I tried to run 300w of inc's at the same time the 400w HID was on, the room was way too hot with 700 watts running as you could imagine. It turns out of course I was doing it wrong...LOL I have since been able to read some stuff. This might sound crazy but I now run the 300 watts of clear inc's for the first 6 hours of my flowering time then I run the 400 watt HPS HID for the last 6 hours for a total of 12on 12off. This is what's now called Rauber's Substitution Method. This works very well for me. I have also started mixing in some 27K cfl's and pulled some of the clear inc's with the first 6 hours of light. This is because the strain I'm currently working with, it seems the 27k cfl's increase the calyx to leaf ratio and the clear halogen inc's promote good trich production and internal plant clock speed. Here is another trick to do with clear inc's the same bird told me. Use clear inc's only the last 3 to 5 days of flowering to speed up ripening. This makes the diamonds sparkle even more on the flowers and brings out the flavor. There is a drawback to doing this. Plants that are ripened like this will not re-veg. If you are going to try clear inc's only for the last 3-5 days of flowering for a quick ripening make sure you plane on pulling them and not re-vegging them..

I use the bulbs I showed you in the link. Halogen bulbs have a little more 730nm well, they have a lot more 730nm IMO but standard clear inc's can also be used. As far as the "enhanced spectrum" goes. It was the only halogen I could find that screwed into a standard light socket so I grabbed it. Turns out IMO they work very good. I can find a halogen spectrum chart I think but it's not for this enhanced spectrum. It's on this board in Mother 2nd Martian tread. hope this helps.. Hope everyone had a good holiday.