# Getting ready to transition using 400 hps **URL:** \ **Category:** Lighting\ **Created:** [June 16, 2017, 5:58pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191 "2017-06-16T17:58:30Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Laurap](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/laurap/32/41181_2.png) [@Laurap](https://ilgmforum.com/u/Laurap)\ **Post date:** [June 16, 2017, 5:58pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/1 "2017-06-16T17:58:30Z")
@Donaldj I know you HP lights. When I transition I’ve read to only use 50% during that time. Since I’m using 400 HP with dimmable ballast should it be 50% or 75%. Thanks ---
**Author:** ![Jmesser80](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/jmesser80/32/41138_2.png) [@Jmesser80](https://ilgmforum.com/u/Jmesser80)\ **Post date:** [June 16, 2017, 6:06pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/2 "2017-06-16T18:06:00Z")
I use MH for Veg and a HPS for flower. If you are referring to the transition between Veg and flower I go %100. I just put the light up higher to start and then lower it down after a few days. But I usualy leave the MH bulb in when I switch to flower for a few weeks to help with the stretching. ---
**Author:** ![1972rohan](https://avatars.discourse-cdn.com/v4/letter/1/85f322/32.png) [@1972rohan](https://ilgmforum.com/u/1972rohan)\ **Post date:** [June 16, 2017, 6:12pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/3 "2017-06-16T18:12:29Z")
I’m trying to get when your package to the US how can I pay ---
**Author:** ![Laurap](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/laurap/32/41181_2.png) [@Laurap](https://ilgmforum.com/u/Laurap)\ **Post date:** [June 16, 2017, 9:30pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/4 "2017-06-16T21:30:35Z")
Most companies don’t ship until payment is received. After payment it took 10 days ---
**Author:** ![Donaldj](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/donaldj/32/76518_2.png) [@Donaldj](https://ilgmforum.com/u/Donaldj)\ **Post date:** [June 17, 2017, 3:39am UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/5 "2017-06-17T03:39:08Z")
I typically run my 400w HPS 100% during transition always worked fine for me less stretch was my goal with lower watt HID’s ---
**Author:** ![Laurap](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/laurap/32/41181_2.png) [@Laurap](https://ilgmforum.com/u/Laurap)\ **Post date:** [June 17, 2017, 11:11am UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/6 "2017-06-17T11:11:22Z")
Thanks for your text. Knew you used HPs and wanted to know as some say to transition @ 50%. Heats been such a problem I’m sticking w/400 . Yield will be just a little smaller, right ---
**Author:** ![Donaldj](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/donaldj/32/76518_2.png) [@Donaldj](https://ilgmforum.com/u/Donaldj)\ **Post date:** [June 17, 2017, 12:30pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/7 "2017-06-17T12:30:17Z")
Less light equals less yield in most cases ---
**Author:** ![Laurap](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/laurap/32/41181_2.png) [@Laurap](https://ilgmforum.com/u/Laurap)\ **Post date:** [June 17, 2017, 7:45pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/8 "2017-06-17T19:45:11Z")
Quite a bit less? I was going to invest in ballast to handle 600 on next grow. I’m I stupid to wait? Will yield be considerably smaller or just smaller buds? ---
**Author:** ![Donaldj](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/donaldj/32/76518_2.png) [@Donaldj](https://ilgmforum.com/u/Donaldj)\ **Post date:** [June 17, 2017, 10:55pm UTC](https://ilgmforum.com/t/getting-ready-to-transition-using-400-hps/12191/9 "2017-06-17T22:55:32Z")
master the temps first because a 600w is a lot hotter