Can't wait to see! What's your distance to bulb?
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Can't wait to see! What's your distance to bulb?
Ttystikk
Member
I'd like to know this, too. I plan to hang mine 30" from the trellis, or in the center of a five foot diameter cylinder. I'm concerned this might be too close?
I think you'll be fine. Total radiant output is less than w/ a 1000w hps, just shifted into the visible range w/ a lot more blue. I'd pay attention a little more the first few days to be sure.
i run the 860 the same distance from plants as i would a regular 1k w HPS bulb, about 18 inches
remember i am running mine vertical with NO cool tube or hood at all, just a bare bulb hanging in a circle of plants
remember i am running mine vertical with NO cool tube or hood at all, just a bare bulb hanging in a circle of plants
Ttystikk
Member
My buds get this close too. How long have you been running the 860? How do you like them so far?
2 or 3 weeks with it so far... ya no complaints..... great results so far.... ill post pics and more info when im in the garden
Ttystikk
Member
I just installed mine- 1/3 of the whole shipment of a dozen bulbs was bad; either the quartz inner sleeve was broken or the bulb shattered on initial startup.
I'm hoping he's as good as his eBay rating says he is. Shit happens, I'm not pissed, in fact I like the light from those that are running now enough that I want more bulbs!
I have head to head Super Silos with different bulbs going in two different bloom rooms, so we WILL get the answer as to whether this is a real step up from HPS or not.
I'm hoping he's as good as his eBay rating says he is. Shit happens, I'm not pissed, in fact I like the light from those that are running now enough that I want more bulbs!
I have head to head Super Silos with different bulbs going in two different bloom rooms, so we WILL get the answer as to whether this is a real step up from HPS or not.
As I said, he was entirely gracious dealing with breakage during shipment for me. I doubt that your experience will be any different.
bump...I am gonna run one this winter as I aint got room for my 600s right now....1000bulbs seems to be the best site so far...the lumens and life seem less than hps if I remember right
Firebrand
Active member
Thanks man, I found it, good price too, 32.23$ + 10.63$ shipping.
MHS-040093295 GE 93295 - 400 Watt - ED18 - ConstantColor Chromafit - Metal Halide Conversion Lamp - For Use With 400 Watt High Pressure Sodium Ballasts - Unprotected Arc Tube - 3000K - M169/S51 - Universal Burn - CMH400/U/830/R
The 860s have the same intensity as a 600w HPS. I did one quick run (12/12 from start) and was very pleased with resin and density. I liked to keep the ladies around 14" away. The prob I faced with hanging vert was the limited coverage, due to shape of bulb. This fall I'll be trying one or two on a light mover.
D
Drek
It's kinda hard to compare the two lamps tho, in terms of wattage or lumens. Because all of their wattage is going into two different spectrums.
seems stronger than a 600w to me more comprable to a 1kw imo; I'd like to hang a vert 600 next to the 860... this pic shows a 1kw hps ushio and the 860 powered by a magnetic MH ballast
i should say that all the plants in the room are recently transplanted and have been under t5's the last few weeks....
D
Drek
Cool pic. Interested to see how it turns out.
Ttystikk
Member
I have CDM 860W lamps going in the same room as HPS thouies and there's no doubting the 860W is brighter. It's not the age of the HPS lamps, either; mine are all just a few weeks old.
Here's the caveat; our eyeballs suck at measuring actual light output. We get fooled many ways. I believe the CDM lamps will provide better spectrum and more PPf than HPS thouies, and save me 15% off my power bill for a bonus. That belief and my eyeballs are not enough, so I'll run side by sides until I feel comfortable giving an opinion.
Here's the caveat; our eyeballs suck at measuring actual light output. We get fooled many ways. I believe the CDM lamps will provide better spectrum and more PPf than HPS thouies, and save me 15% off my power bill for a bonus. That belief and my eyeballs are not enough, so I'll run side by sides until I feel comfortable giving an opinion.
