0
If that's a continuous load of 40 watts, you need quite a large battery, depending on how long the demand is. Car batteries supply more than 40 watts when running the cars lights when the car's ignition is switched off, so I guess something like a motorcycle battery would suffice.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoThe current is irrelevant. What matters is the voltage. For a lamp to operate at its rated power, it must be subject to its rated voltage (that's why both the rated power in watts, and the rated voltage in volts, is printed on the lamp).
To determine what current this combination of power and voltage draws from the supply, you simply divide the rated power by the rated voltage.
Add your answer:
Earn +20 pts
Where do you find a watt?
A watt is a measurement of electricity, usually pertaining to light. Light bulbs luminosity is graded by wattage, such as a 60 watt bulb, 100 watt bulb and so on. You would find a watt in a light bulb, to start.
A 500 watt pool light pulls how many amps?
To answer this question the voltage of the bulb is needed.
How long can a battery power a 44 watt light bulb?
To answer this question the amp hour rating of the battery is needed along with the voltage of the battery or bulb.
How many lumens are in a 1000 watt incondescent light bulb?
A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.
WILL 103 VOLTS LIGHT A 60 WATT LIGHT BULB?
Yes, a 103 volt source will light a 60 watt light bulb. The relationship of the bulb's wattage output at a lower voltage, as to the normal voltage that the bulb is rated to operate on, the light output will be lower.
How many 75 watt fluorescent bulbs are needed to give as much light as a 75 watt incandescent bulb?
A 15-watt fluorescent should produce about as much light as a 75-watt incandescent.
Where do you find a watt?
A watt is a measurement of electricity, usually pertaining to light. Light bulbs luminosity is graded by wattage, such as a 60 watt bulb, 100 watt bulb and so on. You would find a watt in a light bulb, to start.
Is a watt a light bulb?
A 60 watt light bulb is a light bulb with 60 watts capacity. When talking about watts, you're talking about the power that is transferred from the appliance to the accessories. Therefore, the light bulb labeled "60 watts" takes 60 watts to light up. A 60 watt light bulb will not be as bright as a 120 watt light bulb.
A 500 watt pool light pulls how many amps?
To answer this question the voltage of the bulb is needed.
What is the minimum watt of a light bulb for night reading?
40 watt light bulb. This is obvious. Go do an experiment. -_-
What is the highest watt light bulb that there is?
the highest light bulb is 100
How much energy does a 5 watt light bulb use off?
A lot
How bright is 400 lumens?
This is a bit less light than a 40W incandescent bulb (much less than a 9-watt CFL bulb, but twice as much as a 5-watt CFL mini-bulb).
Can you safely replace a 120 watt light bulb with a 60 watt light bulb in a chandelier that still contains other 120 watt light bulbs?
Yes, it will be perfectly safe.
How long can a battery power a 44 watt light bulb?
To answer this question the amp hour rating of the battery is needed along with the voltage of the battery or bulb.
Can you use a 65 watt bulb instead of the recommended 55 watt bulb?
If you dont mind splodey light bulb.
How many lumens are in a 1000 watt incondescent light bulb?
A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.
