LED Spotlight Bulb

Question

Please send me some more info of LED spots compared to other possibilities, such as energy saving light bulbs in terms of actual consumption and light output?

LED Spotlight Bulb

Answer

Jin Tae by Interelectra makes a comparison between saving lamp spot lights, LED spot lights, halogen spot lights and incandescent bulbs.

Filament lamp spot lights:

-Lifespan: about 1000 hours.

-Light output (light quantity per unit power): 6 à 12 lumens/watt.

-Diverse capabilities possible in E27 and E14 fitting.

-Cheap to purchase.

-Vibration sensitive.

-Dimming gives a life-time extension and lower power consumption.

-No ballast resistor and can be connected directly to the mains.

-Warm light with excellent colour rendition.

Halogen spot lights:

-Lifespan: about 2000 à 4000 hours

-Light output: 14 à 30 lumens/watt

-Connected directly to mains voltage, there exist many capabilities possible in E27 and E14 fitting. At low voltage (12V), there exist many capabilities possible via transformer or electronic ballast.

-Pretty expensive to buy in comparison with incandescent bulbs.

-Vibration sensitive.

-Dimming gives a shortening of the life span and lower power consumption.

-In 2 versions, to connect directly to the mains, or via transformer.

If halogen (12V) via transformer, best take a electronic transformer: This allows for less power consumption, longer service life and overheating protection.

-Warm light with excellent colour rendition.

Led spot lights:

-Life span about 20 to 30,000 hours (for the spot lights with white light)

-Light output: 25 à 35 lumens/watt

-Currently, the maximum power per spot 25W (5 LEDs of 5 Watts in an enclosure)

-Very expensive to buy in comparison with incandescent bulbs.

-No vibration sensitive.

-Fully dimmable with reserves of service life and lower power consumption.

-Always via ballast on the mains voltage.

-Foolproof.

-Colder light with a good colour rendition.

-Be careful with purchases: often there is much ambiguity about the light output and longevity in lesser known brands.

Saving lamp spot lights: (energy saving bulbs in a reflector mounted)

-Service life: approximately 12,000 hours.

-Light output: about 20 to 30 lumens/watt.

-Pretty expensive to buy in comparison with incandescent bulbs.

-15 and 20 W available (E27 fitting, like a regular light bulb).

-No vibration sensitive.

-Non dimmable or dimmable standard, possible on professional execution with special ballast.

-With built-in ballast, or through special foot with ballast (Professional version)

-Foolproof.

-Choice between cold and warm light with good color reproduction.

-Please note, service life and light output is mainly guaranteed in European suppliers. There are also loose on the market to obtain reflectors over an existing energy saving lamp mount. Then there are larger asset be used with better efficiency (up to 85 lumens/W)

Some general comments:

When you buy an ad you need to pay attention to the optics of the spot. A spot of 15W can are bright in a bundle of 6 °, but can that also in a bundle of the bvb 12 °. The amount of light is so right, but the distribution on your work surface and the light level differences.

At halogen spot lights can make the choice between hot and cold-beam-beam. At hot-beam goes the heat primarily to the front of the spot. At aanlichten of food products, this can be a problem and you need to take the cold-beam or any other way of aanlichten.

Keep sufficient cooling ability where the ballast is.

When overheating is an electronic transformer. A classic transformer can then burn or finally fall out.

In the range of halogen lamps you have the choice between the standard halogen and the IRC halogen. The IRC halogen lights (25 to 30 lumens/W) give a better return than standard halogen lights (15 to 20 lumens/W).

On all lamps is the light output (in lumens or lumen/W). At spot lights, the light strength (luminous flux in a certain direction expressed in cd) to make comparisons in light output, you must spot lights of various types with the same optics compare.