it has become time to let you know you have annoyed me since calling me a dork Gumby. If you are working with space restrictions like most people how close you can allow a light to be becomes very important. Mr E.Duck would not have been able to yield 400 dry grams in a 60cm square space with anything but a cooled dimmable 400w HPS. I've read your thread and thanks for the laughs man. Guys said valves were dead, but now audiophiles the world over are still using them more than 50 years after they were 'killed' by the germanium transistor. You need to get off your pedestal Hyroot. As soon as you show me something a little better than a few tiny plants under CFL I will start considering if your opinion means more to me. Don't expect my respect just yet, everybody else here has earned it, nit you yet buddy.
dork meant it was funny corny joke.. When some one calls you a dork it means you are being corny....
Don't get mad because most of the world is replacing all lighting with led... Its not a pedestool its fact. HPS is left in the dust..... NASA, Rail roads, automotive, Shopping centers, schools, offices, green houses All over the world have already replaced all their lights with led... Higher cri (Color rendering index), higher par (photosynthetically available radiation, umole/s)., more even spectral distribution, 10 times the longevity, lower heat, lower running costs.. 660 watts of nichia or cree led will beat a 1000 watt hps any day. Lumens don't mean anything to plant growth but led has more lumens per watt than hps...
I was doing cmh , par t5 and led until my place was robbed 3 months ago. I'm using borrowed T5's with aquarium bulbs for now... I added cfl's because I got them for free and wanted to hit the lower growth since my little plants are 5 feet tall. Top buds are milk carton size and beer bottle size buds frosty as hell under t5 and cfl and they still have 2 weeks left. Another fuckin hater.
Another hater..
I know you didn't read my thread, you are just reiterating what skunk said because you are on his nuts... Otherwise you would give me props , Hater
Read through the mainlining and led without led , club t5 threads. and journal entries. I have plenty of pictures there too. I used hps for years and years until I saw the difference myself..
Par from 12 inches away
,
Area 51 led
sg 155 watts - 1216 µmole/s
Apache tech inc
At660 - 660 watts 2000 µmole/s
philips allstart cmh - lasts 3 times longer than hps
330 watt - 1400 µmole/s
860 watt - 2200 µmole/s
ushio hps
1000 watt - 1804 µmole/s
600 watt - 1100 µmole/s
The sun at midday is 2000 µmole/s