The Philips t12 style bulb has a double glass. The external glass acts like an enclosure to keep the actual bulb (if it explodes), all the hot shit and glass inside that outer glass tube. T9 bulbs have only 1 glass layer. If that bulb happens to explode, and your running open or vert style, that hit electrical shit lands on your floor, and possibly setting it on fire.
The "T" designation is only for Philips bulbs iirc. If you want to go Philips routs, this is what use. The 930 in flower, and 940 bulb in veg. One is an open hood bulb, one for enclosed hood .
All this got me thinkink ... So the T12 has double the glass the T9 has, so this makes the T9 brighter than a T12? And is the glass loss about the same in both scenarios?
I'm thinking my current hps hood is vented and has glass to catch the exploding bulb so maybe I can just use it with the T9 bulb...
Use existing hood
Choose proper bulb style/type and then K.
Buy cmh bulb adapter for each hood
Buy a cmh ballast
Plug in and rock on
I rock a basic prism ballast. Why would you ever need to dim a 315 bulb??? No frills. It's a perfect, cheap ballast.
Man . This is what i was thinking, what an inexpensive way to upgrade existing gardens, you know someone in corporate caught wind of this and pulled the plug on the 315 technology... Chat rumor
All this got me thinkink ... So the T12 has double the glass the T9 has, so this makes the T9 brighter than a T12? And is the glass loss about the same in both scenarios?
I'm thinking my current hps hood is vented and has glass to catch the exploding bulb so maybe I can just use it with the T9 bulb...
The t12 glass catches the internal glass in an explosion. An a.c. hood replaces the outer t12 glass, so the hood glass acts as the t12 outer glass, making it safe for a t9 glass in case of explosion.