Home > News > Industry News

Why is an LED Replacement Lamp for a 400 or 450 Watt HID Bulb a 150W Bulb?


When you’re out shopping, you usually measure what you buy by the number of units you get out of it; if you’re out to get milk you think about buying gallons or liters and tomatoes by the pound or kilo. When we buy light bulbs we’ve grown used to buying them according to the amount of energy they consume, instead of how much light they give us.  Not the smartest way, right?
If you’re looking to replace a light bulb, you can’t focus on Watts to determine the light output. You should be looking for a lower Watt option, since Watts measure the amount of energy consumed and you want that to be less – without dimming your space! That’s why you need to focus on lumens to gauge the light output you’ll get from your new bulb. It works like this:
Watts measure power, showing you the rate at which electricity is being used at a given moment in time. That means that a 400W or 450W bulb draws 400 or 450 Watts of electricity at any moment when turned on, while the 150W bulb will only draw 150 Watts to produce the same amount of light. That’s more than 50% savings on one bulb alone!

Lumens measure how much light a bulb emits, higher lumen rates mean brighter bulbs or more light, whereas lower lumen rates mean dimmer bulbs.  A 150W bulb has a 16500 Lumens output, which gives you a nice bright light that works really well as a replacement. The best part? It has 50,000 hours of estimated lifespan, so it’s a long term solution.

Energy Savings LED is a highly energy-efficient lighting technology, and has the potential to fundamentally change the future of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least 75% less energy, and last up to 25 times longer, than incandescent lighting.
How is LED energy-saving?
LED bulbs that we use nowadays consume only 2-17 watts of electricity. That is about 30% savings compared to incandescent and about 3% savings from fluorescents. With this minimal electric consumption, it could extend battery life. It is 10 to 15 times longer than when using incandescent bulbs. 

LED vs. Incandescent Lights

Incandescent bulbs have been on the market long before LEDs are commercialized. Incandescent lights use a filament that glows when electricity passes. This filament is usually made of tungsten and reaches temperatures of up to 3000K when glowing. That is more than half as hot as the surface of the sun!
But an incandescent bulb only converts 5% of its energy into visible light. The rest is converted to heat. LED lights, on the other hand, have an efficiency of 40%-50%.  This means LEDs use much less energy to produce the same luminosity as incandescent.