Ceramic Metal Halide Bulbs...for HPS ballasts?

i know this is over a year old, but Dutch, how did your grow end up?? as far as vs your HPS runs.??

Quote:

---

Originally Posted by Swansen

i know this is over a year old, but Dutch, how did your grow end up?? as far as vs your HPS runs.??

---

I've been using 400 watt CMH for 3 years, now. I still have my HPS bulbs if I need them..:thumbsup:

I have two 400 watt CMH lights, now.

Looks like I will need one of those HPS lamps after all. My newest CMH bulb failed after 2 months...:wtf:..the other one is 3 years old.

http://www.eyehortilux.com/EQS-N-52-46-00002.pdf

The last post by me was the Halloween harvest...:)

Now: the Valentine harvest; before the cut.

The first pic is at 8 weeks flowering..:wtf:..the HPS light wasn't cutting the mustard. So...back to all CMH light the last 2 weeks of flowering. Only water & a little molasses, added.

The second pic is at 10 weeks. In my opinion: 4000k in MH or CMH lighting works very well in closets.

Valentine harvest: flashback...:pimp:

i have a couple of q's

1. i use a 400watt cmh and was wondering, dutch pimp, if your buds are airy?

im on my 2nd tent grow (og kush in DWC) w/ the cmh but my 1st grow, white widow in soil (fox farm) the buds were really airy.

2. i read some where that its not good to use mylar because it absords (or something) some of the infrared rays or something and cmh users should stick w/ white, is that true?

3. how do i prevent the burns i get on my girls? it looks like yours, dutch, i have lots of crispy, burnt leaves too?

4. i got the "enclosed" cmh bulb is it good or should i get an "open fixture" bulb? what kind of glass do i use, mine only says tempered.

5. i also read that its a good idea to throw in a uv bulb in the grow to, is this also true and if so which one uva or uvb?


thank you

Quote:

---

Originally Posted by potwarrior

i have a couple of q's

1. i use a 400watt cmh and was wondering, dutch pimp, if your buds are airy?

im on my 2nd tent grow (og kush in DWC) w/ the cmh but my 1st grow, white widow in soil (fox farm) the buds were really airy.

2. i read some where that its not good to use mylar because it absords (or something) some of the infrared rays or something and cmh users should stick w/ white, is that true?

3. how do i prevent the burns i get on my girls? it looks like yours, dutch, i have lots of crispy, burnt leaves too?

4. i got the "enclosed" cmh bulb is it good or should i get an "open fixture" bulb? what kind of glass do i use, mine only says tempered.

5. i also read that its a good idea to throw in a uv bulb in the grow to, is this also true and if so which one uva or uvb?


thank you

---

1. No ...I have no airy bud problem. It's either a strain problem or a growing method problem. I do soil only.

2. Mylar reflects heat. Flat white paint is better.

3. It's not usual for bottom WW leaves to turn yellow & die off. I keep the light about 15 inches above the canopy. You have to watch for burning on the top canopy; no matter what bulb you use. To far away is better than too close.

4. All Philips CMH bulbs are rated for 'open fixtures'. I run an open fixture. Is your bulb a Philips Retro-White CMH bulb?

5. Philips CMH bulbs have all the UV you need. Probably; too much UV if it's too close to the plant tops.

Quote:

---

Originally Posted by Dutch Pimp

1. No ...I have no airy bud problem. It's either a strain problem or a growing method problem. I do soil only.

2. Mylar reflects heat. Flat white paint is better.

3. It's not usual for bottom WW leaves to turn yellow & die off. I keep the light about 15 inches above the canopy. You have to watch for burning on the top canopy; no matter what bulb you use. To far away is better than too close.

4. All Philips CMH bulbs are rated for 'open fixtures'. I run an open fixture. Is your bulb a Philips Retro-White CMH bulb?

5. Philips CMH bulbs have all the UV you need. Probably; too much UV if it's too close to the plant tops.

---

sorry it is an "open fixture" philips cmh.

also, how much did you yield? my current grow (round 2) i only have 3 girls, probably gunna do scrog, and i was wondering how much wet and dry weight i can expect per plant under 1 400watt cmh.


thank you,
PW

In the first pic you can see the yellow of 4000k CMH


new camera...new buds....:thumbsup:

time marches on...dual 400 CMH...:stoned: