CIBSE Recommended Lux Levels (2024)

FAQs

What are acceptable lux levels? ›

In homes- The recommended illumination levels for homes is often 150 lux. The living and dining rooms may work pretty well with about 25 to 50 lux. Supermarkets- Working spaces like supermarkets and mechanical rooms require light levels of about 750 lux.

For warehouses, the recommended lux levels for manned storage areas, according to CIBSE / The Society of Light and Lighting, are a minimum of 150 lux at floor level and ideally 200 lux at the face of any racking. Typically we aim above these recommendations.

In general, the more detailed the task, the greater the light requirement. A process control room should be lit at an illuminance of 300 lux, a corridor or walkway may only require 50 lux, whilst studying an engineering drawing may require 750 lux (see HSG38 Lighting at Work).

Typical room illumination is 300-500 lux, whereas outdoor light varies from 1500 lux on a cloudy day to 100000 lux on a sunny day.

To replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. If you want something dimmer, go for fewer lumens; if you prefer brighter light, look for more lumens. Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens.

One lux is equal to one lumen per square meter, and they vary from lumens, which calculates the brightness of the source of light. Therefore, 1 LUX = 1 Lumen / m2. Enough light should be provided in the area so that people perform their tasks without any mishaps and hassles.

What is lux level as per Factory Act 1948? ›

As per Factories Act the minimum light levels should not exceed 500 Lux as it measures the intensity of light hitting a surface typically a wall or a floor . One lux is equivalent to one lumen per square meter.

How to Measure Light Levels in the Workplace - YouTube

The lux (symbolized lx) is the unit of illuminance in the International System of Units ( SI ). It is defined in terms of lumen s per meter squared (lm/m ² ). Reduced to SI base units, one lux is equal to 0.00146 kilogram per second cubed (1.46 x 10 ^-3 kg / s ³ ).

Adequate lighting means there is enough light to allow ease in cleaning and provide a safe, well-lit work place. All light fixtures above equipment or areas where food is exposed must be break-proof.

Lux for Light Therapy Lamp

The answer here is clear cut: 10,000 lux for 30 minutes is the standard prescription for post-awakening light therapy. This is typically for treating seasonal depression shortly after waking up in the morning.

Most commercial SAD lamps produce much less than 10,000 lumens; 2500, or even less, are common. (They almost never say how many lumens they produce, but you can calculate it from their wattage and the luminous efficacy of their bulb type.) Anyway, there's nothing magic about 10,000 lux.

To replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. If you want something dimmer, go for fewer lumens; if you prefer brighter light, look for more lumens. Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens.

Lux is measured in lumens per square metre. Kitchens require a minimum of 300 average lux. Living rooms and bathrooms require 150 average lux and bedrooms only need to have an average of 100 lux.

environment, around 500 LUX is needed. In the workshop area where detailed work is done the recommended level is 500-700LUX. For spaces like the operation theatre of the hospital, the LUX level should be around 1000.

If you wanted to use the IES' recommended light level for a bedroom, you'd multiply 168 by 5 foot-candles (168 x 5 = 840), and you'd see that the bedroom requires 840 lumens for general use. This amount of lumens is equivalent to about one traditional 60-watt incandescent bulb or a 10-watt A19 LED bulb.

How many lux is a sunny day? ›

Typical room illumination is 300-500 lux, whereas outdoor light varies from 1500 lux on a cloudy day to 100000 lux on a sunny day.

Kitchen work areas: 7,000 to 8,000 lumens. Bathroom: 7,000 to 8,000 lumens. Home office: 6,000 to 8,000 lumens. Dining room: 3,000 to 4,000 lumens.

High lumens

Lumens measure the light output of the LED kitchen light fixtures. The higher lumens on offer, the brighter the light, and vice versa. We recommend a kitchen led from 1000 to 1800 lumens to ensure it's far brilliant and airy like the Morris 2ft, 4ft, 5ft or 6f LED Tube Lights.

In the kitchen, the recommended brightness levels run about a powerful 4,000-8,000 lumens with a recommended LED color temperature of around 2,700-5,000 K. Your dining room, on the other hand, warmer temperatures will bring coziness to any dinner party.

In general, the more detailed the task, the greater the light requirement. A process control room should be lit at an illuminance of 300 lux, a corridor or walkway may only require 50 lux, whilst studying an engineering drawing may require 750 lux (see HSG38 Lighting at Work).

General Lighting Requirements

First-aid stations, offices, and infirmaries: 30 foot-candles. General construction plants and shops: 10 foot-candles. General construction area: 5 foot-candles. Warehouses, walkways, corridors, exits, and other indoor spaces: 5 foot-candles.