# New HLG 600rspec **URL:** \ **Category:** Lighting\ **Created:** [June 9, 2021, 6:14pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892 "2021-06-09T18:14:33Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Soiled\_My\_Plants](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@Soiled\_My\_Plants](https://ilgmforum.com/u/Soiled_My_Plants)\ **Post date:** [June 9, 2021, 6:14pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/1 "2021-06-09T18:14:33Z")
@dbrn32 I just ordered an HLG 600rspec. I am upgrading from a Bloom Plus 3000. I am ready to flip to flower once I receive the HLG. My question is, what dimmer setting should I be using to start flower on the HLG? I have been running the lights on a progressive increase. Currently I am running the BP at about 75%. ---
**Author:** ![PurpNGold74](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/purpngold74/32/533767_2.png) [@PurpNGold74](https://ilgmforum.com/u/PurpNGold74)\ **Post date:** [June 9, 2021, 6:18pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/2 "2021-06-09T18:18:14Z")
Im guessing about 50%. And you may want to give em a week to adjust them flip and incrementally creep it up from there ---
**Author:** ![Soiled\_My\_Plants](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@Soiled\_My\_Plants](https://ilgmforum.com/u/Soiled_My_Plants)\ **Post date:** [June 9, 2021, 9:04pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/3 "2021-06-09T21:04:12Z")
Also forgot to ask, should the light be kept at 18 inches above the canopy? ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [June 9, 2021, 9:05pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/4 "2021-06-09T21:05:56Z")
I would bump up the light you have a little now, then to full power in couple of days if everything is looking good. Then do just like Purp says and start with hlg-600 around 50%, should be similar ish light intensity levels to bp3000 at full power. Once you have hlg-600 running well give her 5-10% boost every 5 or so days if you can keep up with temps, nutrients, etc. If all goes well you should be about full power by end of transition. If you run into problems, just back intensity off a little until you get squared away. ---
**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\ **Post date:** [June 9, 2021, 9:06pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/5 "2021-06-09T21:06:46Z")
I would go more like 24-30" and see how things do. 18" pretty close for light that big. ---
**Author:** ![Soiled\_My\_Plants](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@Soiled\_My\_Plants](https://ilgmforum.com/u/Soiled_My_Plants)\ **Post date:** [June 10, 2021, 12:25am UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/6 "2021-06-10T00:25:59Z")
@PurpNGold74 @dbrn32 Thank you both for the help. I’ve been working on controlling my temps and humidity. I just got the AC Infinity S6 so hopefully that will help. ---
**Author:** ![PurpNGold74](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/purpngold74/32/533767_2.png) [@PurpNGold74](https://ilgmforum.com/u/PurpNGold74)\ **Post date:** [June 10, 2021, 12:27am UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/7 "2021-06-10T00:27:22Z")
Nice work. That Infinity should get it done! Great product. And no probs Bob ---
**Author:** ![Duschkin](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@Duschkin](https://ilgmforum.com/u/Duschkin)\ **Post date:** [July 20, 2021, 7:12pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/8 "2021-07-20T19:12:27Z")
Hi. Was looking into some HLG lights for Flower tent. Any recommendations between getting the 550 Rspec vs 600 Rspec? ---
**Author:** ![CMichGrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/cmichgrower/32/511471_2.png) [@CMichGrower](https://ilgmforum.com/u/CMichGrower)\ **Post date:** [July 20, 2021, 11:06pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/9 "2021-07-20T23:06:27Z")
The 550 rspec is no longer being made and was replaced with the 600 rspec. ---
**Author:** ![Gunther11](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/gunther11/32/547717_2.png) [@Gunther11](https://ilgmforum.com/u/Gunther11)\ **Post date:** [August 21, 2021, 6:29pm UTC](https://ilgmforum.com/t/new-hlg-600rspec/68892/10 "2021-08-21T18:29:20Z")
I would start out at about 50% maybe a little less just so your plants have time to adjust then crank that baby up. Could start at 50% and turn it up 25% each week just an idea.