daniel19831123
Member
I've came across this table lamp (http://www.ryness.co.uk/ProductDetails. ... uctID=7172) and this lamp (http://cgi.ebay.co.uk/5-x-60-LED-GU10-D ... 286.c0.m14) in my search for a small nano tank light probably for 30cm cube. I'm never good with electrical appliances and physics, hence I would like some answers for a few questions that I have. Any opinion and answer out there is very welcome.
1. How does one compare LED light to T5? Does the WPG rule applies(LED light appear to have a ridiculously low wattage)? How many bulbs of the above would be needed for lets say an example of a 30cm cube?
2. What about the lumen and PAR of the light? Does that affect how the plant will grow? If yes, does anyone knows what is the PAR value for LED?
3. How does light temperature and wavelength correlates? I've read around and a lot of LED related light source only mentioned about wavelength suitable for growing plant but there is no association with light temperature. How do you find out what does 6700K light correlate to in terms of nm wavelength? From my reading so far, Ive adopted the assumption that the wavelength of the light is inversely proportional to the temperature. Am I wrong?
4. What is the penetrance of the LED compare to T5? If it's used for emerged plant, does that mean you can put the light closer to the plant and get a lot more light out of it?
Thanks
1. How does one compare LED light to T5? Does the WPG rule applies(LED light appear to have a ridiculously low wattage)? How many bulbs of the above would be needed for lets say an example of a 30cm cube?
2. What about the lumen and PAR of the light? Does that affect how the plant will grow? If yes, does anyone knows what is the PAR value for LED?
3. How does light temperature and wavelength correlates? I've read around and a lot of LED related light source only mentioned about wavelength suitable for growing plant but there is no association with light temperature. How do you find out what does 6700K light correlate to in terms of nm wavelength? From my reading so far, Ive adopted the assumption that the wavelength of the light is inversely proportional to the temperature. Am I wrong?
4. What is the penetrance of the LED compare to T5? If it's used for emerged plant, does that mean you can put the light closer to the plant and get a lot more light out of it?
Thanks
