Also Know as the Gas Light Routine

We don&#8217t care exactly where the name came from but we do know that the GLR will save cash on power bills and encourage your plant to get started flowering a small bit quicker.

The GLR is only utilized for the vegetative cycle.

This light routine is a small diverse with 3 objectives:

  1. Providing the plant the light it requires for vigorous root and foliage improvement
  2. Save power resulting in a decrease power bill
  3. Causes the plant to flower quicker than any other light schedule

The GLR light schedule is as follows:

  • 12 hours of light on
  • five.five hours of light off
  • 1 hour of light on
  • five.five hours of light off

This final results in operating the lights for 13 hours every single day resulting in a substantial savings and when it comes time to get started the flowering cycle, your buds will get started forming faster.

NOTE: some strains will flower working with GLR so watch for that. If you do see the flowering cycle commence, just revert back to your typical vegetative hours.


Some growers use a complete 24 hours of light and other individuals use 18 hours of light and six hours of darkness. On a single hand, the grower is attempting to mimic the summer season daylight hours (18 on six off) whilst on the other hand the grower is attempting to push their plants to grow  quicker (24 on) with no rest or relief from the light.

We have attempted each and see no benefit to operating the lights 24 hours on. The plants appear fine and the yields are equivalent what ever strategy you use. Of course operating your lights for 24 hours will increase  your power bill. Attempt the GLR and watch your power bills drop.


Most growers use a 12 hours of light on and 12 hours off.

Other growers, like us get started with 12 on and 12 off than just about every two weeks enhance the off by 30 minutes attempting to mimic the finish of summer season/fall sunlight.


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