How SMD LEDs Help Reduce Electricity Bills in Pakistan

Rising electricity costs are a concern for many businesses in Pakistan. SMD LED technology appears in two different places in a business: in lighting (LED lamps, panels and strips) and in LED display screens. They affect your electricity bill in different ways, so this article explains each separately and shows how to estimate the effect for your own premises.

LED Lighting: Where Most Savings Usually Come From

Incandescent bulbs turn most of the electrical energy they use into heat rather than light, and fluorescent tubes are also generally less efficient than modern LED lighting. Replacing older lighting with good-quality SMD LED lighting products can reduce the energy used for the same amount of light, which is useful for plazas, shops and factories with long operating hours.

The saving depends on what you are replacing, the efficiency of the new products, and how many hours the lights run. Compare the wattage of old and new fittings and multiply the difference by operating hours to estimate the saving.

LED Display Screens: Efficient, But an Added Load

Indoor LED screens are used for promotions and messaging. They do not replace room lighting; a new screen adds an electrical load. However, modern LED screens can be efficient for the brightness they deliver, and their consumption can be controlled with good settings.

If a screen replaces an older display, such as a projector or an older, less efficient screen, it may use less power, but this depends on the specific products. Compare datasheet figures.

Reducing Power Use of Outdoor Screens

Outdoor screens need high brightness in daylight, which uses more power. Automatic brightness control, using a light sensor or schedule, lowers brightness in the evening and at night, reducing consumption while keeping content readable.

Pixel Pitch, Brightness and Power

A screen’s power use depends mainly on its size, the specific product’s efficiency, the brightness setting and the content shown. Pixel pitch affects resolution and cost, but power should be compared using each model’s datasheet figures. Running screens at the brightness actually needed, rather than at maximum, is one of the simplest ways to save energy.

How to Estimate Consumption

For a screen: average watts per square metre (from the datasheet) × area ÷ 1,000 = average kW; × daily hours × days = units (kWh). For lighting: total watts of fittings ÷ 1,000 × hours × days = units. Multiply units by the per-unit rate on your own electricity bill to estimate cost, and compare before and after.

Setup and Support

Correct installation and settings help screens run efficiently and reliably. SMD LED can help you choose products, and set up brightness schedules on the screens we supply. Electrical work should be carried out by a qualified electrician.

Traditional Lighting vs LED Lighting

Maximum Power vs Average Power

LED screen datasheets usually list two power figures. Maximum power is what the screen draws at full brightness showing full white. It is used to size cables, breakers and the power supply. Average power reflects typical video content at normal brightness and is the better figure for estimating your monthly units.

The difference matters. If you estimate your bill from the maximum figure, the result will usually be too high. If you size the electrical supply from the average figure, the circuit may be undersized. Ask your supplier for both numbers and use each for its own purpose.

A Hypothetical Worked Example

Suppose, purely as an illustration, a datasheet lists an average power of 200 W per square metre and the screen is 8 square metres. That gives 1,600 W, or 1.6 kW. If the screen runs 12 hours a day for 30 days, it uses 1.6 × 12 × 30 = 576 units (kWh) a month at that average. If brightness scheduling lowers the evening level, the real figure will be lower. Use your own product’s datasheet and your own operating hours, then apply the per-unit rate from your bill.

Practical Ways to Lower Screen Consumption

• Match brightness to the location. Indoor screens typically need around 600–1,000 nits. Outdoor screens usually need around 4,500–6,500 nits in direct sun, but much less after dark.
• Use a light sensor or schedule. Controllers such as NovaStar systems can adjust brightness automatically through the day.
• Switch off outside business hours. A screen that runs all night in an empty mall or closed shop adds units without adding value.
• Design content sensibly. Darker backgrounds and less full-white content generally draw less power than bright white slides.
• Choose the right size and pitch. A screen larger than the space needs adds load. As a rule of thumb, the minimum comfortable viewing distance in metres is roughly equal to the pixel pitch in millimetres.

Heat, Ventilation and Power Quality

Electricity used by a screen eventually becomes heat. Indoors, a large screen in a closed room can add to the air-conditioning load, so allow space for airflow behind it. Outdoors, cabinets must handle Pakistani summer heat and dust, and outdoor screens should have at least an IP65 front rating for dust and monsoon rain.

Power quality also affects running costs indirectly. Voltage fluctuation and repeated hard shutdowns during load-shedding can damage power supplies and modules, leading to repairs. Proper earthing, surge protection and a planned shutdown and restart routine help protect the screen. If you plan to run a screen from a UPS, generator or solar system, size it with the maximum power figure and ask a qualified electrician to check the design. You can read more about suitable products on our indoor SMD screens and outdoor SMD screens pages.

Energy Checklist for a New Screen

• Have you received both maximum and average power figures from the datasheet?
• Is the electrical supply sized for the maximum figure, with proper earthing?
• Will brightness adjust automatically by light level or schedule?
• Are operating hours set to match your business hours?
• Is there enough ventilation so the screen and the room do not overheat?
• How will the screen handle load-shedding and power returning?

Our services include help with screen configuration, so brightness and schedules can be set up correctly from the start.

Plan Your Upgrade

Upgrading lighting and choosing efficient, well-configured screens can help manage electricity costs. SMD LED can advise on display products for retail and commercial spaces. Contact us to discuss your requirements.