Lux: The amount of light that is cast on a surface is called illuminance, which is measured in lux. This can be thought of as light intensity within a specific area. Lumens: The total output of visible light from a light source is measured in lumens. One lux is equal to one lumen per square meter (lux = lumens/m2).

1600 lumens

How Much Light Do I Need?

A measurement of 1 lux is equal to the illumination of a one metre square surface that is one metre away from a single candle. One lux (1 lux) of light is a measure of the light density, equivalent to 1 lumen per square metre (lm / m^2).

Lighting for Specific Work Areas: For average mechanics and office-based typing work: 200 Lux Minimum Illumination. For machine processing and office-based drawing work: 300 Lux Minimum Illumination. For fine mechanics, engraving, drawing and color comparison: 400 Lux Minimum Illumination.

Earlier it was common with light levels in the range 100 – 300 lux for normal activities. Today the light level is more common in the range 500 – 1000 lux – depending on activity. For precision and detailed works, the light level may even approach 1500 – 2000 lux.

Raise the level of light for reading to 500–800 lux, and concentrate task lighting on your needed surface at 800 to 1,700 lux. For example, in an adult’s bedroom, you need lighting to be lower to wind down your body for sleep….Room Lighting Levels.

Indirect sunlight is 10,000 to 25,000 lux, which is safe. So basically, don’t look directly at any light that is more than 25,000 lux and you should be safe.

In a nutshell, You only need 25 to 50 lumens (per square metre) on your book surface to read without eye-strain. More precisely, you need 25- 50 lux of illuminance. It means, those lumens of light should be focused on your reading area.

LEDs are a directional light source, which means they emit light in a designated direction. As a result, LEDs make great reading lights. However, it’s important to pay attention to the color temperature and brightness of your LEDs, as choosing the wrong reading light can cause eye strain and impact your sleep cycle.

You’ll want bright lights places around the room, but not so many that it blinds your computer screen. A couple of 400 lumen spotlights would work well, but if you’ve just got the one light source, an 800-1000 lumen bulb will work, too. And like the kitchen, you want a cool temperature to keep you motivated.

When you’re 10, you can read by 40 watts or hardly any light. By the time you’re 60, you need around 100 watts. But the doctors warn that too much light or glare is just as bad as too little light.

100 watt bulb is used for 10 hours will consume 1000 wattsr. This is kilo watt hour unit of energy. since 60 watt bulb consumes less power its light out put will be also less. Supply voltage being constant the more watts means more current,So you consume more energy pay for money.

So, a 60-watt bulb uses 60 watts hours or . 06 kilowatt hours of energy for each hour it’s on. The bulb would use 1 kilowatt hour in just less than 17 hours if left on continuously; around 12 cents in our current tariff for most residential customers.

800 lumens

Putting a 100-watt bulb in a 60-watt fixture could cause intense heat, melting the light socket and the insulation on the fixture’s wires. Any time you have that kind of damage on wires, you’re at a big risk for arc faults, where an electrical current falls off its intended path— a leading cause of home fires.

customers ask is: “Can I use an LED that has a higher wattage equivalent than my fixture allows?” The simple answer is yes, as long as the LED bulb uses less wattage than your fixture.

0.90 Amps

0.83 amps

In fact, the 120-Watt bulb would have a current of 1 Amp and a resistance of 120 Ω; the 60-Watt bulb would have a current of 0.5 Amp and a resistance of 240 Ω.