[Feijao]

Originally Posted by rives

Digital, but low frequency. My Philips ballasts don't seem to cause any RF problems, but I don't know about the others.

Thanks so much for the quick bit of help.

[Ozone25]

Originally Posted by HarvestMoon303

I've seen the "newer" 340-350 watts at my local grow store, but I had no idea that there were 630W LEC's. According to a recent test, get the newer, CMH digital ballasts. I'm talking 30%+ improvement over a 400 Mag, back to back, same bulb/fixture/area measured.

Any model numbers or examples of a CMH Digital Ballast? Or is the Philips ballast referenced in the OP a digital ballast? Sorry for the stupid question

[rives]

Yes, the Philips ballast is a digital ballast. ALL of the ballasts for the 315 thus far are digital. The 330's, etc, are retrofit lamps for 400's that run on magnetic ballasts.

[Fishywater]

Guys,

I am looking over on bulbamerica and I am not sure which of these 315w bulbs to order?
Which has the best spectrum for a single use all around bulb, for veg and bloom?
Very little price diff, but I just want to get the right one and get on with it !

This one:
https://www.bulbamerica.com/products/...hid-light-bulb

Or this one:
https://www.bulbamerica.com/products/...hid-light-bulb

Thanks guys!
I am gonna probably get the ballast rives linked to on the 2nd post.
Sure would have liked to got the deal at ATL, but.....

[rives]

Although the picture doesn't show it, the lamp in the second link for $2 more has an internal coating. It will cost you some light output, so you would probably want to avoid that one. While I prefer coated incandescent lamps, I've never understood why some HID lamps are coated - it's not like you can look at them anyhow.

[Fishywater]

Originally Posted by rives

Although the picture doesn't show it, the lamp in the second link for $2 more has an internal coating. It will cost you some light output, so you would probably want to avoid that one. While I prefer coated incandescent lamps, I've never understood why some HID lamps are coated - it's not like you can look at them anyhow.

Thanks man, I appreciate your knowledge and help !

[Stond_Face]

I went to the local shop today to get a 400W HPS bulb to replace a dead 400W CMH, but I accidentally bought a Sunsystem 315W LEC system instead. So...I'm in!

This thing is bright as F$@& compared to a 400w HPS.

[rives]

Accidentally?

Wait until you see the difference in the plant's response. A 400w HPS isn't even vaguely comparable....

[watts]

Would these LEC lights be good for veg mode? Will the 630 cover a 4x4 table, i'm assuming 315 would cover a 3x3

[Fishywater]

OK
I just purchased the ballast for $157.50 here:
https://depotlighting.com/iztmh210315rlfm-p-6976.html
Shipped for 173.66

ballastdiscount. com was $180.26 shipped.

Also, I bought the bulb from bulbamerica, except I saved $5 on shipping on their Ebay page.

Cha-ching !
(hey, every buck adds up these days)