Can anyone explain 240/110 cords

Greenthumbs256

Well-Known Member
Basically I'm looking at the new gavita lights but they all come with a 240 cord I believe that's the big one like the dryer uses! I don't have anywhere to plug that in what can I do? And also what's the difference why do they even make both!
 

booms111

Well-Known Member
120v runs double the amps of 240v, both use same wattage. So if you run 120v on a normal 120v 15 amp breaker with normal 12-14 gauge house wire your pushing roughly 9 amps, so can only run one. Where as if your running on 240v your using 4.5 amps so can run more lights per breaker but at 240v need to use double breaker and might as well use double 30 amp breaker with 10 gauge wire, then can run 4 lights safely on a light controller.

So if your planning on only running one DE and no plans of ever using two just get the 120v plug option. Just don't run anything else on that breaker except something under 3 amps like a fan.
 

Greenthumbs256

Well-Known Member
120v runs double the amps of 240v, both use same wattage. So if you run 120v on a normal 120v 15 amp breaker with normal 12-14 gauge house wire your pushing roughly 9 amps, so can only run one. Where as if your running on 240v your using 4.5 amps so can run more lights per breaker but at 240v need to use double breaker and might as well use double 30 amp breaker with 10 gauge wire, then can run 4 lights safely on a light controller.

So if your planning on only running one DE and no plans of ever using two just get the 120v plug option. Just don't run anything else on that breaker except something under 3 amps like a fan.
OK that helps a lot Thank you! But tell me this if I get the 240v plug and use and adapter to fit into a 120 wall outlet! Could I run 2 or would the adapter make it 120. And still use higher amps? I'm not an electrician and can't exactly have a 240 plug installed! In my flower room I have 2 separate breakers already hooked just bc the house is wired weird but I have a 10k btu running on one and 1000k hps running on another and fans split between the 2! Basically what I'm grasping is I can't get a second light bc I won't be able to run it all without blowing breakers or fuses or w.e.! Or i could but I would have to convert both lights to 240v?
 

Sapphyre

Active Member
You would have to re wire or replace the ballast to make your new light 110 -
Trying to figure out how to convert the voltage at the wall may be a doable thing but an electrical fire is the last thing anyone needs!! And- I will also say I've never heard of an adapter for that...but....I've also never looked for one to be honest.
Do you have a buddy that can help you pull a new leg (new wire to the also new 220 receptacle?) to your flower room?

It isn't rocket science but def best left to the pros if you don't know what you're doing :)
220 has two wires that are hot, a ground, and one neutral. 110 has just one of each.

Good luck!
 

booms111

Well-Known Member
OK that helps a lot Thank you! But tell me this if I get the 240v plug and use and adapter to fit into a 120 wall outlet! Could I run 2 or would the adapter make it 120. And still use higher amps? I'm not an electrician and can't exactly have a 240 plug installed! In my flower room I have 2 separate breakers already hooked just bc the house is wired weird but I have a 10k btu running on one and 1000k hps running on another and fans split between the 2! Basically what I'm grasping is I can't get a second light bc I won't be able to run it all without blowing breakers or fuses or w.e.! Or i could but I would have to convert both lights to 240v?
no adaptor will still run at 110v if plugged into 110v source. How much watts does your 10k btu use? Can figure out amps by taking watts and dividing by volts, so 1000 hps divided by 110 volts = 9 amps. You dont want to go past 80% of your breaker amps. So 15 amp breaker can handle 12 amps safely. Hope that helps understand the amps/watts/volts relationship.

If your screen name is area code id honestly avoid any outside help. If you own your house then id check your breaker box for space for a double pole breaker. If theres space id run a 10 gauge 3 wire off a 30 amp breaker into a light controller, done deal. Other wise your pretty much out of luck using 110v to run two 1k hps on same circuit.
 

Greenthumbs256

Well-Known Member
no adaptor will still run at 110v if plugged into 110v source. How much watts does your 10k btu use? Can figure out amps by taking watts and dividing by volts, so 1000 hps divided by 110 volts = 9 amps. You dont want to go past 80% of your breaker amps. So 15 amp breaker can handle 12 amps safely. Hope that helps understand the amps/watts/volts relationship.

If your screen name is area code id honestly avoid any outside help. If you own your house then id check your breaker box for space for a double pole breaker. If theres space id run a 10 gauge 3 wire off a 30 amp breaker into a light controller, done deal. Other wise your pretty much out of luck using 110v to run two 1k hps on same circuit.
Lol thanks buddy that helps a ton and no I'd never use my area code or anything like that just a number That I like lol
 

Greenthumbs256

Well-Known Member
no adaptor will still run at 110v if plugged into 110v source. How much watts does your 10k btu use? Can figure out amps by taking watts and dividing by volts, so 1000 hps divided by 110 volts = 9 amps. You dont want to go past 80% of your breaker amps. So 15 amp breaker can handle 12 amps safely. Hope that helps understand the amps/watts/volts relationship.

If your screen name is area code id honestly avoid any outside help. If you own your house then id check your breaker box for space for a double pole breaker. If theres space id run a 10 gauge 3 wire off a 30 amp breaker into a light controller, done deal. Other wise your pretty much out of luck using 110v to run two 1k hps on same circuit.
And yes that makes it a lot easier to understand I love math lol thanks a ton for info I appreciate it!!!
 
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