A 1000w HPS or Metal Halide light takes 9 amps at 120 volts so you can only run one on a wall outlet circuit. A standard dryer outlet is 220 volts and 30 amps so you can power up to six 1000 watt lights on that circuit.

How many amps is a 400 watt metal halide?

Universal P400ML5AC4M500K – 400W Pulse Start Metal Halide Ballast

ANSI CodeM135
Amperage Rating3.9 Amp at 120 Volt, 2.25 Amp at 208 Volt, 1.95 Amp at 240 Volt, 1.7 Amp at 277 Volt, 0.95 Amp at 480 Volt
ApplicationHID
Ballast Factor1
Capacitor Type24 mF At 400 Volt 100 deg C

How many amps does a 250 watt metal halide draw?

Universal P250ML5AC4M500K – 250 Watt Pulse Start Metal Halide Ballast

ANSI CodeM138
Fuse Rating8 Amp At 120 Volt, 5 Amp At 208/240 Volt, 3 Amp At 277 Volt, 2 Amp At 480 Volt
GTIN00768386212324
Gross Weight11.550
Height4.250 Inch

How much power does a metal halide use?

The ballast requires watts too. System watts are the total watts the lamp and the ballast use together. The system watts for a 400 watt metal halide is about 458 watts depending on the ballast….What is the difference between lamp watts and system watts?

Metal Halide (MH) High Pressure Sodium (HPS)System Watts (approximate)
1000w HPS1100 watts

How many amps do I need for a grow room?

NM: As far as a rule of thumb goes, typically you need about 1,000 amps for every 10,000 feet. In a 20,000-square-foot grow, you’re going to need 2,000 amps.

How many amps is 1000 watts 240?

Watts to amps at 240V (AC) chart

Watts:Amps (at 240V):
1000 watts4.17 amps
1100 watts4.58 amps
1200 watts5 amps
1300 watts5.42 amps

How many amps is a 400w light?

Watts To Amps Table (At 120V)

Watts:Amps (at 120V):
200 Watts to amps1.67 Amps
300 Watts to amps2.50 Amps
400 Watts to amps3.33 Amps
500 Watts to amps4.17 Amps

How many amps does a 300 watt LED light draw?

2.5 amps
300 Watts divided by 120 Volts (residential US standard) = 2.5 amps (assuming 100% efficiency) drawn from the wall. The weakest circuits in most homes can support up to 15 amps, or 1800w each. This light fixture will only draw 2.5 amps maximum when both LED circuits are on at the same time. 1 of 3 found this helpful.

How many amps does a 250w bulb use?

Just keep in mind that a 250 watt lamp will take close to 18 amps and since AC4313 requires that total amps be no more than 80% of the alternator capacity, just this lamp will take 18/.

Are metal halide lights energy efficient?

Metal Halide lights have average efficiency (75-100 lumens/watt source efficiency). They lose out to LEDs principally because their system efficiency is much lower (<30 lumens/watt) due to all of the losses associated with omnidirectional light output and the need to redirect it to a desired area.

How many Watts Does a metal halide fixture use?

Here are the ACTUAL wattages of the most common types of Metal Halide that we see. 175 Watt Metal Halide Fixture = 205 Actual Watts 250 Watt Metal Halide Fixture =290 Actual Watts 400 Watt Metal Halide Fixture = 458 Actual Watts 1000 Watt Metal Halide Fixture =1,081 Actual Watts

What is a metal halide lamp?

Metal halides are compounds formed when metal and halogen elements combine. They include things like sodium chloride (salt) and uranium hexafluoride (the fuel used in nuclear energy reactors). Metal halide lamps produce light by passing an electric current through a combination of mercury and metal halide gas.

What is the best alternative to metal halides?

In this case, one alternative technology we would look at is inductive fluorescent. We could easily replace the 1000 watt Metal Halides with 250 Watt inductive fluorescents. Here is how we would compare: 100 (New Fixtures) x 265 Watts = 26,500 Total System Watts.

How do I know what size of metal halide I have?

One of the easiest ways to find out the size of your fixtures is to look on the supply room shelf. You likely have a replacement bulb in there somewhere under a layer of dust. If you have a maintenance person, they will be able to tell you what size of Metal Halide you have.