2 bulbs, 1 ballast
sativamanstarted grow question 4y ago
Does any devices exist to run 2 bulbs alternatively (like two 12 hrs cycles, one On, the other Off) out of one ballast ?
Open
Setup. Lighting
1 like
Answer
Med_in_Tropicanswered grow question 4y ago
It is possible to rig two timers in parallel with one ballast. Then you can program varying intensity to simulate natural day light with weaker mornings, intense mid-days, and ramping down evenings.
likes
Complain
Similar Grow Questions
Solved
Vladisrad
Temperature VS More Light which is better for buds size and potencyShould I continue to use two LEDS if temps are reaching 87f during flower (day 1) or just move plants more towards center of tent and use one LED for better temperatures (75f) (only growing two plants). lights are 1000w bestiva and are in a tent that is 24"x48"60".Buds. Other
Other. General questions
Setup. Lighting
5y ago
3
9
Solved
GrowGirl419
Are these LEDs good?What do you growmies think of these lights? They're LED's, I have 2 of these going and a few other lights. These though, I don't understand much about electrical info. My green seems to like them ok but are they good? I know to the experts out there, this probably seems dumb, but
Week 10
Setup. Lighting
6y ago
4
2
Solved
HueyBrown
What light for floweringHi! I have a full spectrum light bulb red/blue and a small amount of white and another growing light bulb but more white/yellow. As I'm transitioning to flowering, which bulb should I use to get big buds? I can't find clear answer on the web. Thanks 🙏🙇♂️Week 6
Setup. Lighting
7y ago
3
3
Solved
Sugahmama
OMGMy Timer malfuntioned and gave them over 22 hrs of light?I was wondering why they kept growing this fast and big until i controlled the system and noticed they get to much light and stretching this hard. So i turned the hrs down to 16 to stress them into blooming, will this Work?
3y ago
8
6
Solved
sylix
What lamp to start growing (cheap)?I want to grow 1 or 2 plants but i cant find a cheap lamp for my preference. I ordered Northern Autos and DoSiDos Auto. Im planning to plant one of each.
I´ve got 36cmx36cmx140cm im growing without a box i will try building it myself. is it enough space for 2 plants and wich lamp
Setup. Lighting
2y ago
13
10
Solved
Italy_Grower
Reverse flowering timecould I reverse the time when putting into bloom and switching from a 12/12 program? I could turn on at 00:00 and turn off the light at 12:00, because honestly I keep them on during the night and I turn them off at noon and I would like to do the opposite, can I?Other. Other
Setup. Lighting
5y ago
5
5
Solved
Valleywestbuds
Light strength2 of my autos have been harvested and now I just have 1 mature plant mid flower and I've started my 3 other seedlings. I've got a tsw 2000 w/310 wts. Should I keep my lights at 100% for maximum growth or should I back off a touch to say 75 or 80%?
Setup. Lighting
4y ago
1
4
Solved
Growerxm00
18-6 or 24H Of lightHello growers, I’m growing an auto and I have it under 18-6 h and she already started to flower, my question is if I can change it to 24 h of light and if there’s any benefits with that, cause I already read that night time will help them recover a bit from stress and I use scrog6y ago
2
2
Solved
PooBrainStoney
Can someone please show me a proper setup guide for hanging grow lights?I recently purchased a Vivosun Smart grow system, but this is my first tent and the booklet just says "tie light up top" with a ratchet hook system. I wont be able to adjust height without tons of extra work, can someone assist me?Setup. Lighting
4y ago
3
Solved
idkwhatimdoing
LED light recommendation?so going by my last question, i need a growlight. so i wanted to ask if theres a budget light for like 2 plants. i dont have a ton of space n im kinda lost on the topic. i live in europe so itd be great if it was a light i could get in my country too. germany's fine as well.Setup. Lighting
4y ago
2
2
Solved
sydnimerritt
Does anyone use regular Led lights?I have my 2 tangies growing one in soil and one hydro. I decided to try LED, lights 14.5 watts (2), a large plant grow light 8 actual watts (1), and a true day 9 actual watt. Has anyone else had success with these lights?
Setup. Lighting
Feeding. Automatic systems
Techniques. Other
5y ago
1
2