How to choose LED bulbs in Pakistan: wattage, lumens and price explained.

Standing in front of a shelf of LED light bulbs is more confusing than it should be. The bulbs look alike, the wattage labels vary, the brightness claims are hard to compare, and the prices are all over the place. The result is that many people buy on price alone and find out months later that the bulb is dim, flickers, or has already failed.

This guide explains how to read what is on the box and compare LED bulbs fairly, so that the LED bulb price in Pakistan you pay matches what you actually get. It covers wattage versus lumens, colour, fitting, what drives price, and the real energy savings you can expect from energy efficient LED light bulbs.

LED Bulb Wattage vs Lumens: Which Number Tells You the Brightness

Most people shop by wattage because that is how incandescent bulbs were sold. A 60 watt incandescent bulb was understood to be a medium brightness bulb. With an LED bulb, wattage only tells you how much electricity the bulb draws. The number that tells you how bright it is, is lumens.

As a general reference, these are the lumen levels traditionally associated with common incandescent bulbs:

• About 450 lumens: a 40 watt incandescent bulb
• About 800 lumens: a 60 watt incandescent bulb
• About 1,100 lumens: a 75 watt incandescent bulb
• About 1,600 lumens: a 100 watt incandescent bulb

Dividing lumens by watts gives you the efficacy of the bulb, how much light you get for each watt of electricity. For example, Crest's 8W LED bulb (CR-BL-8W) is listed at 720 lumens, which works out to 90 lumens per watt. That is a little under the 800 lumens usually associated with a 60 watt incandescent bulb, so it is a sensible replacement for a bulb in that range. Good LED bulbs commonly deliver 80 to 100 lumens per watt or more, so a quick division like this is the fastest way to compare two bulbs honestly.

In practice, this means a 7W to 9W LED bulb typically replaces a 60 watt incandescent bulb, and a 12W to 15W LED bulb replaces a 100 watt one. If the packaging shows a wattage but no lumen figure, treat that as a warning sign, because it hides the number that matters most.

Colour Temperature and Colour Quality

Brightness is only part of the picture. The same lumens can feel very different depending on colour temperature.

• 2700K to 3000K, warm white: a soft, yellowish glow suited to bedrooms and living rooms.
• 4000K, neutral white: a clean, balanced light suited to kitchens, study areas, and offices. The CR-BL LED bulb on our LED bulbs page is rated at 4000K.
• 5000K to 6500K, cool white or daylight: a bright, bluish light suited to workspaces and areas where alertness matters.

If colours matter, for example in a kitchen, a dressing area, or a shop, also check the CRI (colour rendering index). A CRI of 80 or higher is generally considered good for homes, and 90 or higher is better where accurate colour matters.

Check the Base, Size, and Where the Bulb Will Live

A bulb that does not fit is wasted money. The two most common household bases are E27 (screw) and B22 (bayonet), with E14 used for smaller fittings, so check the base on your existing bulb or fitting before you buy.

A few other practical checks:

• Dimming: if you use a dimmer, buy a bulb labelled dimmable and check that your dimmer supports LED loads, otherwise it may flicker or buzz.
• Enclosed fittings: using a standard LED bulb in a fully enclosed fitting can trap heat and shorten its life, so look for a bulb rated for enclosed use if that is your situation.
• Moisture: the CR-BL bulb is rated IP20, which means it is intended for dry indoor fittings. Bathrooms, covered outdoor areas, and similar locations need a higher ingress rating.

What Affects LED Bulb Price in Pakistan

If two bulbs have the same wattage and the same lumens but very different prices, the difference is usually in what you cannot see. The main factors are:

• LED chip quality. Good chips keep their brightness and colour consistent over thousands of hours. Poor chips dim and shift colour sooner.
• Driver quality. The driver is the small circuit that converts mains power into the current the LED needs, and it is the part most likely to fail. In places where voltage fluctuations are common, a driver built to handle them is one of the biggest differences between a bulb that lasts for years and one that fails in months.
• Heat management. LEDs lose life when they run hot. A well designed body that carries heat away from the chip costs more to make and pays for itself in lifespan.
• Warranty. A longer warranty reflects the manufacturer's confidence in its components. Crest's CR series, which includes the 8W bulb, carries a 5 year warranty.
• Manufacturer and testing. Bulbs from a manufacturer that tests batches and holds recognised quality certifications generally cost more than unbranded stock, and generally last longer.

The best way to compare value is price per lumen rather than price per bulb, and then to consider the warranty on top of that. Crest does not publish fixed online prices for LED bulbs, because the right price depends on wattage, quantity, and warranty tier. If you want an accurate quote, request one here and our team will respond with pricing for your actual requirements.

Energy Efficient LED Light Bulbs: A Worked Example

The saving from energy efficient LED light bulbs is easy to calculate for yourself, and doing the sum once makes the case clearly.

Take a 60 watt incandescent bulb replaced by a 9W LED bulb that gives similar brightness, used for 5 hours a day:

• Power saved: 60W minus 9W equals 51W
• Energy saved per day: 51W multiplied by 5 hours equals 255 watt hours
• Energy saved per year: 255 watt hours multiplied by 365 days equals about 93 kilowatt hours per bulb

For a home with 15 bulbs used in the same way, that is roughly 1,400 kilowatt hours a year. Multiply that figure by the per unit rate on your own electricity bill to see the saving in rupees. LED bulbs also give off far less heat, which can slightly reduce the load on air conditioning during the hot months.

Lifespan adds to the benefit. A bulb rated for 25,000 hours and used for 5 hours a day would last about 13 and a half years, compared with a bulb that needs replacing every year or two. When comparing LED bulbs, check the rated hours and the brightness level it refers to, since a lifespan figure means little without it.

A Simple Buying Checklist

• Decide the brightness in lumens, not watts. Use the reference figures above for the room.
• Choose the colour temperature to suit how the room is used.
• Check the CRI if colour accuracy matters.
• Confirm the base type and size against your fitting.
• Check dimmability if you use a dimmer.
• Look for a stated warranty and ask what it covers.
• Compare lumens per watt and price per lumen, not just the sticker price.
• Ask who manufactures it and whether they publish their certifications.

When Another Fixture Is the Better Choice

If you are lighting a whole room or office, a group of bulbs is not always the best answer. LED downlights and LED panel lights give an even, built in look in false ceilings, and LED ceiling lights mount directly onto the ceiling where there is no false ceiling. You can browse the full indoor lighting range to compare options by room.

Where Crest Fits In

Crest LED has manufactured LED lighting in Lahore since 1996, as described on our About page, with ISO 9001 certified production and warranty coverage from 3 to 10 years depending on series. If you are comparing LED bulbs in Pakistan for a home, an office, or a larger order, our LED bulbs range is the place to start, and for pricing on your specific wattage and quantity, request a quote. For a deeper look at wattage and pricing factors, see our earlier LED bulb price and wattage guide.

Frequently Asked Questions

What wattage LED bulb should I buy?

Choose by lumens first, then check the wattage. A bulb that replaces a 60 watt incandescent bulb should give about 800 lumens, which is usually a 7W to 9W LED bulb. A replacement for a 100 watt bulb should give about 1,600 lumens, which is usually 12W to 15W. For reference, Crest's 8W LED bulb is listed at 720 lumens.

What is the LED bulb price in Pakistan?

There is no single price, because it depends on wattage, chip and driver quality, warranty, and brand. Compare price per lumen rather than price per bulb, and weigh the warranty as well. Crest does not publish fixed online prices for LED bulbs, so request a quote with your wattage and quantity for an accurate figure.

Are LED light bulbs really more energy efficient?

Yes. LED bulbs turn more of their power into light and less into heat than incandescent bulbs. Replacing a 60 watt incandescent bulb with a 9W LED bulb used for 5 hours a day saves about 93 kilowatt hours per bulb each year.

How long do LED bulbs last?

It depends on the product, so check the rated hours. Many household LED bulbs are rated somewhere between 15,000 and 25,000 hours, and a bulb rated for 25,000 hours used 5 hours a day lasts about 13 and a half years. Also check what brightness level the lifespan figure refers to, and what warranty comes with it.

Which colour temperature is best for a home?

Warm white, 2700K to 3000K, suits bedrooms and living rooms. Neutral white, around 4000K, suits kitchens and study areas. Cool white or daylight, 5000K to 6500K, suits workspaces. Crest's CR-BL bulb is 4000K.

Can I use any LED bulb in my existing fitting?

Not always. Check the base type (E27 screw, B22 bayonet, or E14 for smaller fittings), whether the fitting is fully enclosed, since trapped heat shortens bulb life, and whether you use a dimmer, which needs a dimmable bulb and a compatible dimmer.

Can I use LED bulbs in a bathroom or outdoors?

Only if the ingress protection rating allows it. Crest's CR-BL bulb is rated IP20, which is for dry indoor fittings. For wet or outdoor locations, choose a fixture designed for it from our outdoor lighting range rather than a standard bulb.

Where can I get LED bulbs in Pakistan from a manufacturer?

Crest manufactures LED lighting in Lahore and supplies through a request a quote process. You can see the range on our LED bulbs page and send your requirements through the contact page.