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400 watts is a little overkill for 5 square feet &2 plants.it will be tough to handle the heat. as for bulbs, ultrasun makes bulbs designed for horticulture that are fairly cheap & since they are designed for plants, they should be good. meybe not as good as a $100+ bulb but for 1/4 the...

each bulb may produce less heat but when you add them up.... there is a risk of them exploding,not much but multiply it by 16 bulbs. HPS carry about the same risk. again not much but also not multiplied by 16. hundreds of factories use millions of HPS lights -never heard of 1 starting a fire. a...

that will require rewiring the apartment.

same question is asked & answered here https://www.rollitup.org/grow-room-design-setup/503576-appartment-growing-electrical-questions-thx.html#post6945236

N.America or Europe? different electric systems. I will assume USA. you will need to map out your breakers,it is very unlikely that 1 breaker feeds that room & only that room. turn off your breakers 1 at a time & see what goes out in your apartment. are the breakers 15 amp or 20? either way...

1st off,US or Europe? different systems,different voltages next what watt bulbs? like stated above,total number of watts will determine wire size. does your fixtures have wire leads coming off or wire terminals? again,as stated above,why so many bulbs? for that large a setup, you could buy a...

old TVs have several capacitors in them like the 1 in a HPS ballast.I dont think they will hold a charge for months but to be safe, wear rubber gloves when gutting it. you are looking for a metal can anywhere in size from a D battery to a large soup can with 2 wire terminals. w/out touching...

you are just determined to burn your house down, ain't ya?? YOU CAN NOT USE ANY ODD TRANSFORMER TO BUILD A MH OR HPS LIGHT. it must be made for your specific use. the only place you will find a ballast is in a HPS light.

a subpanel is rated 2 ways, max amps and # of breakers. the max amps determines the size of the wire lugs so you would have trouble cramming 6 gauge wire in a 30 amp panel but 10 gauge wire will fit in a 60 amp panel so going bigger won't hurt.what you want is a panel that will take more...

what else is on the circuit? garage door opener? ever run power tools?

god I hate pissing contests.Matt, stick around, you are getting good advice.I think drifter is misunderstanding what smokey said & is trying to protect you from screwing up & if he misunderstood, you could to. never fear, when someone posts bad advise, he will get bit. its better for someone to...

start by mapping your breakers -turn 1 off at a time & see what is powered by it. add up the draw from each device to know how much power is used on each circuit.most electric appliances have a plate showing the draw. watts devided by volts to get amps -600 watts devided by 110 = 5.5 amps amps...

not the way to go. it is very unlikely that a line to your bedroom feeds only 1 room so you will probably need to rewire part of the house.are you sure that line doesn't feed an attic fan? energize that w/ 220 & you have a fire. much better and safer to run a new line from your breaker box to...

Bump Sorry but your side of the pond uses a system totally different from what I know Hope a sparky from your side sees this

you will be impressed w/ the MH/HPS over CFLs. when hanging the light,(assuming horizontal)know that the footprint is not a circle but oblong w/ more light being thrown to the sides verses the ends. meaning you will want the base against a 5 foot wall pointing at the other 5 foot wall.

are you venting all your air into the attic or just the fresh air running into the cooltube? As for the plants getting to hot,hold your hand just over the canopy, palm down for a minute.if it gets uncomfortable, your to colse to the light. a thermometer in the light will read high. if you need...

FLIR is not a worry in the US. it is in some countries. as for materials,the size dictates what you use. up to a 8x10 room,I would just use 2x2s and as for walls, whatever is cheaper in your area. you could even get away w/ blk&white poly. a big concern is power, how much do you plan to need &...

other than a MH bulb, not that I know of. you could check the wires as well.

dont run any motors in the garage.

propane creates CO2 if burned properly & completely. otherwise it will create some CO. as long as you have a small blue flame,you should be good.