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Amps * Volts = Watts
Since you know the Watts, determine your voltage to determine the Amps.
For example, if you are using 120 volts:
Amps * 120 = 30
and from basic algebra
Amps = 30/120
Amps = .25
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoYou are comparing apples with Oranges. For any type of lamp, the watt is used to measure its input power whereas the lumen is used to measure the luminous flux emitted by that lamp. Luminous flux describes the rate of 'light flow' away from the lamp -in other words it measures the power of this 'light flow'. The lumen is a unit in what is known as photometric unit, used to measure visible light (as opposed to ultraviolet or infrared light, for example) and is based on the sensitivity of the eye.
So although both the watt and the lumen measure power, the lumen is very specific in what it measures as it is adjusted to the sensitivity of the human eye.
The output of a lamp, expressed in lumens, depends on the efficacy of the lamp. Efficacy is not the same thing as efficiency; efficiency compares like with like (output watts divided by input watts) so has no units, whereas efficacy compares output lumens with input watts (measured in lumens per watt). Efficacy is determined by the type of lamp, with incandescent lamps having low efficacy values (5-15 lumens per watt) and fluorescent lamps having high efficacy values (50-100 lumens per watt).
So if, by '30 watts', you are referring to an incandescent lamp, then its output in lumens will be of the order 150-450 lumens, but if you are referring to an fluorescent lamp, then it will be of the order 1500-3000 lumens.
Wiki User
∙ 14y ago30 watts since watts is a measure of power. Power=Voltage times current so a 120v 30 watt light will use .25 amps of current since its the current that turns the electric meter on your house.
Wiki User
∙ 11y agoHlogeen 30w in gloeje lamp hoe veel is dat in een gloei lamp
Wiki User
∙ 11y ago1800lumens per watt
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What is lumen output for a 250w halogen?
Halogen lamps run hotter than conventional incandescents, and as a result of their hotter filaments, emit a whiter light with more of the light in the visible range, and less in the infrared. A typical 50W halogen emits between 800 and 950 lumens.
What is the lumen's for a 500w halogen light?
Wikpedia says that halogen lamps produce about 19-20 lumens/watt. If you have a 500W lamp then you get 9500-10000 lumens.
What is the incandescent equivalent of a 40 Watt halogen bulb?
A halogen bulb IS ITSELF a type of incandescent illumination source. A 40 Watt traditional incandescent bulb usually emits about 400 to 500 lumens while a halogen may emit close to twice that. So a 25 W halogen might give out as much light as ah older style 40 W bulb.
Is calcium in the halogen group?
No, calcium is not in the halogen group. The halogen group is made up of fluorine, chlorine, bromine, iodine, and astatine.
How many lumen's in a 150 watt flood light?
around 21,000 average 100 watt bulb is around 1400 lumens. That's 14 lumens per watt. 14X1,500 = 21,000
How many lumens in a 20 watt halogen bulb?
Approximately 15 lumens per watt for halogen, so 300 lumens.
How many lumens in a 18 halogen lamp?
About 300.
What is the lumen output for a 35W halogen?
It varies from about 600 to 1100 lumens. Typically the higher the lumens output, the shorter the lifespan of the globe. Have a look at this list of globes for purchase whih shows wattage and lumens: http://1000bulbs.com/category/75-watt-incandescent-standard-shape-light-bulbs/
How many lumens are in a 150 watt incandescent light bulb?
A 150 watt halogen bulb will give off somewhere around 2000 lumens. These lights may give off up to about 2400 lumens.
How many lumen's in a MR16-50W halogen bulb?
From 550 to 750 lumens
What is lumen output for a 250w halogen?
Halogen lamps run hotter than conventional incandescents, and as a result of their hotter filaments, emit a whiter light with more of the light in the visible range, and less in the infrared. A typical 50W halogen emits between 800 and 950 lumens.
Lumens in a 50 watt bulb?
It depends on the specific lamp. The packaging the lamp comes in should tell you what the lumen output is. This in a common question as people want to compare LED replacements. You can use 600 lumen as a good guide for comparison for a 50 Watt halogen.
What is the lumen's for a 500w halogen light?
Wikpedia says that halogen lamps produce about 19-20 lumens/watt. If you have a 500W lamp then you get 9500-10000 lumens.
How many lumens are in a 20 watt halogen bulb?
The lumen output of the bulb should be determined by measuring the Lumens exiting the fixture that it is installed in. The reflector, lens and housing will all affect the the amount of "light" that exits the fixture to reach the space you are intending to illuminate. Bulbs will vary and Lumens will vary based upon the voltage. A typical 12V 20W Halogen bulb will yield about 180-220 lumens depending on the lens (clear vs. frosted) and the reflector type. Lumens will drop as voltage goes below 12Volts as the design voltage is specified in order to "excite" the halogen gas as it reacts with a tungsten coated filament. If the voltage isn't high enough the filament won't reach it's design temperature and the light won't burn as bright as it was designed to. a lone bulb will yield up to 280-300 Lumens with now housing, lens or fixture but it is also very dangerous due to the heat hazard.
How do the types of light bulbs compare?
The main types are: Incandescent 10 lumens per watt Halogen 13 lumens per watt Fluorescent 40-50 lumens per watt LED 40-60 lumens per watt Lumens measures the brightness, watts measures the electric power used.
Which among the following is most energy efficient incandescent build fluorescent tube compact fluorescent light bulb halogen bulb?
Incandescent produces about 10 lumens of light per watt of electricity Halogen produces about 13 lumens per watt Fluorescent and CFL produce about 50 lumens per watt So Fluorescent is the most efficient.
What is the LED equivalent of a 35 Watt halogen bulb?
Incandescents produce 10 lumens per watt, halogens about 13 lumens per watt, fluorescents and LEDs 40-50 lumens per watt. Lumens measure the brightness, watts measure the speed at which electrical energy is used.
