Alexzheng
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I would use at least a 400 cfm fan with big carbon filter to scrub air in garage. Don't want neighbors ect knowing you are growing in there aka why does it always smell so good around this garage/house. even if you are legal they can still complain ect.View attachment 4088975 View attachment 4088974 View attachment 4088973 I installed 2 x 315 in a cheap amazon 4x4 tent, temp is around low 70's with both lights on, I managed to lower temp by cutting and installed a cheap window air conditioner through the tent, use a tarp to cover the excess hole, and duct tape all seams until enclosed, I am growing in a slightly opened garage,so far no ducting required, I am in SoCal.
Your temps are awesome. Are you way up north or something?View attachment 4088975 View attachment 4088974 View attachment 4088973 I installed 2 x 315 in a cheap amazon 4x4 tent, temp is around low 70's with both lights on, I managed to lower temp by cutting and installed a cheap window air conditioner through the tent, use a tarp to cover the excess hole, and duct tape all seams until enclosed, I am growing in a slightly opened garage,so far no ducting required, I am in SoCal.
looks like a good one. only way to know is buy it and try it.Anybody have experience with silver star 315w hoods?
https://www.growlights.ca/315w-silverstar-cmh-fusion-bright-ballast-system.html
thinking about getting this kit, says it comes with a philips ballast, if anyone has any experience with this light, I'd love to hear your opinion. I cannot find any reviews or grows using this light, but it seems decent to me
thank you![]()
This is very good information ..I've been running a 315W CMH in a 4x4 for years with great success. I have 2 adjustable height 4ft T5 3000K hanging on either side of my hood for supplemental lighting. I perpetually flower 4 plants fairly short in 3 gallon fabric pots, soil. Always have been very happy with the CMH lighting.
Recently I just switched up my 3x3 veg tent and went from an 8-bulb 2ft T5 6500K (16,000 lumens @ 192W) to a Philips 210W CMH 4200K T9 (23,000 @ 210W). http://www.lighting.philips.com/main/prof/conventional-lamps-and-tubes/high-intensity-discharge-lamps/ceramic-metal-halide/mastercolor-cdm-t-elite-med-wattage/928601164902_EU/product
The difference in veg is amazing after just a few weeks. They are growing much quicker and bushier than I was expecting. I try to keep a small electric bill and didn't want to go much higher than 200W for the lights in my veg tent. Seems like the 210W CMH is the perfect fit for my setup. Just thought I would let others know this option is out there. I should say that I use Philips CMH ballasts and they have a built in toggle switch for 315W or 210W. I'm sure other brands have a similar option as well. These 210W do not have an "agro" option, but do come in 4200K and 3000K spectrum.
I'd like it better if I pulled that left bulb mount further left to mirror the right bulb mount...but I'm a symmetry freakNew 5'x5' Tent, 6" Carbon Filtered Exhaust with ActiveAir Inline Fan and Speed Controller. 6" Bug Guarded 6" Passive Intake. 2 Blizzard 6" Oscillating Fans. Crap Evaporative Humidifier.
2 x 315 Phillips 3100k Bulbs retrofitted into a Sun Systems Dominator XXXL Hood & Prism Ballasts
24" to Canopy
View attachment 4090546 View attachment 4090552
Cool, but I'm 100% Sure I'm going to switch to 2 Vertical Sun Systems Reflectors. I have 1, need one more.
I used my lux meter and the equity of the light intensity isn't to my liking. But this is excellent without a full house of plants.
I watched that video and then checked on what lamp I am using.https://growershouse.com/blog/cmh-315w-lamp-comparison-test-data-review/
Phillips 3100k beats other bulbs by 8% average PAR
are you saying no cloudy or all cloudy? Maybe I just need more coffee to wake up.I watched that video and then checked on what lamp I am using.
LOL I got lucky and had already bought that Phillips Elite Agro. Whew....no second thoughts. :0)
It is amazing to see my Tangie looking done before a full seven weeks are past.
A few ambers and I will take it....little or no trichs not cloudy already.
JD
I watched that video and then checked on what lamp I am using.
LOL I got lucky and had already bought that Phillips Elite Agro. Whew....no second thoughts. :0)
It is amazing to see my Tangie looking done before a full seven weeks are past.
A few ambers and I will take it....little or no trichs not cloudy already.
JD
What do shoot for in lux measurements? That's how I gauge intensity.with the XXXL hood you kinda need 3 315 bulbs as the spread is so big. I have a XXXL hood and it covers a 5x6 area with a 1k bulb at 24 inch over canopy and maxes out LUX app on phone at canopy at those distance with new bulb. I have to go another 6 inch lower or out to get meter to start dropping. Its a huge hood. Do you have a regular hood? or lower it down another 8 inches to 16" over canopy. Tent looks great.