Thanks i might start out with 3 x 315w and see how it goes.Getting an even light spread with 3 lighst/reflectors in a square room is going to be the tricky part
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Philips 315w CDM Elite (CMH)
- Thread starter rives
- Start date
Thanks i might start out with 3 x 315w and see how it goes.Getting an even light spread with 3 lighst/reflectors in a square room is going to be the tricky part
That's why I bought a rectangular tent 4x3 with two 315w.
What I'm seeing is that I'm needing to supplement with additional Mg under the CMH and I never had to do this under the HPS(same strain). Under the CMH, by mid veg I start to show Mg deficiency if I don't supplement.
Maybe you're just seeing the plant's colors clearer? Maybe they always had deficiencies?
Maybe, but I don't think so. I always examined the HPS grown plants under natural light. I've heard that led growers tend to supplement with additional Mg, but not sure why.
HorseBadoritiz
Active member
I've never used any HPS. I've only used the 400W CMH's, and now the 315's, and I usually only use them for blooming. I don't remember seeing a Mg deficiency with the 400's, but now that you're bringing it up, I realize that I have a couple strains that have shown it under the 315's... I can be pretty thick sometimes, lol!
Interesting, thanks for pointing it out!
Found a Prepaid shipping label in my inbox today. They did not say anything about them covering the cost.. That's good 
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Found a Prepaid shipping label in my inbox today. They did not say anything about them covering the cost.. That's good
Liking That!
HorseBadoritiz
Active member
Do you know the max length recommended for the lamp cord?
I have mine mounted about 15' away. I have no specs on that data. Its not had any issues since installation. For the price there great. I have 2 of these. The 1st 1 has been online for 6 months? It does say the ballast case must be grounded. Never seen that mentioned on any of the others.
Ballast Specifications:
Wattage: 315W
Input Volt: 120V/240V
Input Current: 2.89A / 1.42A
Input Power: 343W
Min Power Factor: .95
THD: <15%
Crest Factor: <1.7
Ballast Physical
Length 215mm / 8.46 in
Width 178mm / 7.01 in
Height 92.5mm / 3.64 in
Weight 3.0kg / 6.62lb lb
Ballast Protections
1. End of Life (EOL) Protection
2. Short circuit protection
3. Open circuit protection
4. Ignition failure protection
5. Thermal protection
Ballast Installation & Application Notes
1. Max allowable case temperature: 75 Degrees C / 167 Degrees F
2. Ambient Temperature: -20, +55 Deg. C / -4, +131 Deg. F
3. Max. Humidity: 95%
4. Ignition voltage is 5kV
Ballast Performance Requirements:
Rated mains voltage: 120-240V
Voltage range: (+/-10%): 108-264V
Mains frequency: 50/60 hz
Operation Frequency: 140-220kHz
Anything that would collect or divulge actual user information is prohibited, I think.
Got it. Thanks.
You cant share personal info. That's to keep you and others safe..
You can sale it them on ebay. If the price is right im sure someone will buy them.
You can sale it them on ebay. If the price is right im sure someone will buy them.
Overall I've been happy with the Nanolux i'm running.
One small issue.. I happened to be there when it started up, and my old school FM radio, was out of tune.. Needed to nudge the dial over a bit to hit the station right on.. But it did pick up some RFI noise. But its literally like 6 inches away. When I tuned it to the right spot on the dial the noise stopped.
I think it makes less noise than the digital ballasts I used to run (Solis Tec) that caused problems with my PH/PPM monitor. I'm back to dirt for flower these days, so I dont have any comment on if they cause problems with other equipment. Its been awhile since I ran those, but it seemed like I had more RFI issues.
I might pick up a few more of these 315's..
One small issue.. I happened to be there when it started up, and my old school FM radio, was out of tune.. Needed to nudge the dial over a bit to hit the station right on.. But it did pick up some RFI noise. But its literally like 6 inches away. When I tuned it to the right spot on the dial the noise stopped.
I think it makes less noise than the digital ballasts I used to run (Solis Tec) that caused problems with my PH/PPM monitor. I'm back to dirt for flower these days, so I dont have any comment on if they cause problems with other equipment. Its been awhile since I ran those, but it seemed like I had more RFI issues.
I might pick up a few more of these 315's..
village green
Member
Off topic somewhat but I want to order a CMH system and tent. I live in a non med state and have never ordered online. Would eBay or Amazon be safer than ordering from a grow store?
The problem is packaging, the tent I got off of Amazon was not in another box. I would guess that a ballast, and light hood would be a bit easier to conceal the contents. Like the filter and a fan I bought, it was in a plain box. They tell you in the shipping if its discrete or not.
The CMH I have (nanolux) would have fit in the box that the filter and fan was in.
And clear your shopping history, Its public..
I dont know if its safer in your area vs. a growshop. But if you are paranoid, borrow a truck to go to the growshop. And pay cash. I think its more anonymous to buy from a growshop.. No paper trail, no tracking of packages. Another thing with ballasts and lights I need them to be replaced ASAP in case of failure.
