# What is Ampere

Horace He

Last Updated: July 26, 2023

## What is Ampere

An Ampere, commonly referred to as an amp, is a fundamental unit of measurement used to quantify the flow of electrical current. It represents the rate at which electrons pass through a specific point in a circuit per second. The term “Ampere” is derived from the name of the French physicist André-Marie Ampère, who made significant contributions to the study of electromagnetism.

Amps play a crucial role in determining the amperage of a lighting fixture. Each fixture has a designated amp rating, which indicates the amount of current it requires to function properly. Using a power supply with the correct amp rating ensures that the fixture operates at its maximum capacity. If the amp rating is too low, the lighting may not function properly, while using a power supply with a higher amp rating than necessary will result in the fixture only using the amount of current it requires.

Understanding the ampere rating is essential for selecting the appropriate fixtures for a given electrical circuit and ensuring their safe and efficient operation. It is also closely related to voltage and resistance, as defined by Ohm’s Law, which states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor.

### How Many Amps Is a 100 Watt Bulb

Divide the wattage of the bulb by the voltage of the system to determine the amperage. For instance, in a 12-volt system, a 100-watt bulb will draw approximately 8.3 amps.

### How Many Amps Does a 60W LED Bulb Use

A 60W LED bulb typically consumes around 0.54 amps of current.

### How Many Amps Does a 200 Watt LED Light Draw

The 200W LED light draws a current of 2.5 amps, which is significantly lower compared to the 1000W Halogen light that draws slightly over 8 amps. These LED lights have a long lifespan of up to 120,000 hours per light cell and can be plugged into any 110W outlet for instant restrike. They are an excellent choice for both year-round and highly mobile applications.

### Do Amps Matter for Lights

All lighting fixtures have specific amp requirements, and using the correct amp power supply is essential for proper functionality. If you use a power supply with lower amps, your lighting may not reach its maximum capacity. Conversely, if you use a power supply with higher amps than your fixture requires, the light will only draw the amount it needs.

### How Do You Calculate Amps for LED Lights

To calculate the amperage for LED lights, you can use a straightforward formula: divide the wattage by the voltage. For example, if you have a lighting fixture with a wattage of 60 and a voltage of 12, divide 60 by 12 to get five amps.