| Electronics > Beginners |
| grow led diy |
| << < (4/7) > >> |
| Irukandji:
Sorry for the late response. Thanks for your feedback so far. I found these LED's on ebay, but im not sure if they have enough power for my little grow box. Link https://www.ebay.com/itm/10-x-High-Power-LED-OSRAM-OSLON-SSL-660nm-hyper-red-Platine-3W-Pflanzenwachstum-/172846213449 All in all its for some garden plants like Physalis, paprika and chili. The box size is 90 x 60 x 60 cm. Im not quite sure if i get enough light out of my LED' stripes. They running with 5050 smd LED's. Link: https://www.ebay.com/itm/5pcs-SMD-5050-LED-Grow-Light-Strip-Lamp-for-Indoor-Veg-Flower-Plants-Hydroponic/264077183863?hash=item3d7c3a0b77:g:Mn4AAOSw3fxcCiz-&frcectupt=true |
| honeybadger:
Why do you want RED-BLUE combo? I guess it is obsolete, go full spectrum, all plants will benefit from that. Bellow 4000K for bloom, above 4000K for greens. You can use for example these PROLIGHT OPTO PACE-28FNL-BC4P. If you drive them at around 10W each you will get 200lm/W - it is comparable with most efficient and most expensive grow lights. And for 90x60x60 you will need a LOT of power so don“t be surprised. I guess at least 100W for blooming plants. A sunny day outside is 100k-200k lux - you can calculate how much lumens you need for your box. It is a LOT :) |
| Zero999:
I thought plants grow best with mostly red and a little blue light. I'm aware that other wavelengths are often useful, to instigate flowering and fruiting, but not most of the time. |
| honeybadger:
The blue-red combo it is most useful for chlorophyll only but there is a lot more. Check this: https://en.wikipedia.org/wiki/Photosynthetically_active_radiation#Yield_photon_flux |
| thedoc298:
For a string of six blue LEDs: R = (V-VF)/IF V = 24V VF = 6*3 = 18V IF = 0.3A R = (24-18)/0.3 = 6/0.3 = 20Ohm 20 ohm ^^^^ |
| Navigation |
| Message Index |
| Next page |
| Previous page |