Electrotec Services Grenada Ltd.
Contact Us:
Dixie Road , St.George's, Grenada | P.O.Box 158
Office Land Line: 1-473-440-5375
Office Cell Line: 1-473-420-1095
Office International Line : 1-954-246-4908
Emails: Admin@electrotecservices.gd 

LED Basics

Yes - and this is true of ALL types of light bulbs. The difference between LED lights and the others is that because LED lights last far longer than all other types of lights,  it is very gradual fade and hardly noticeable.  This is called Lumen Degradation and for LEDs, when we rate a bulb at 50,000 hours, this is the amount of time the light takes to get to 70% of the initial lumen output when new.
  • Incandescent globes look like the traditional ‘Edison’-shaped light bulb, with a filament strung across two metal bars in the centre of the globe.  Regular bulb that comes in a variety of shapes and wattage (usually 40, 60 and 75w).
  • Halogen bulbs will look similar to incandescent, but have a filament between the bars inside another glass envelope.  They are much more intense and produce a lot of heat - too hot to touch!.
  • CFLs look like a fluorescent tube twisted into shape to fit a standard light fitting.
  • Fluorescent bulbs are typically in 2', 4' and 8' long tube shapes as seen in most office settings.
  • Metal Halide bulbs are often used in outdoor area lighting that require a lot of lighting - parking lot lights, security lights or stadium lighting for example.
  • High Pressure Sodium are almost exclusively used in street light and produce a light yellow hue.
With a range of options available, it can be confusing to determine which light is right. See our easy guide below for help!
  • Wattage - We match the intensity of your existing light by using much less power.  Energy saving lighting is about reducing the wattage used in a light fitting while maintaining similar light output. For example, a standard halogen spotlight uses 50 watts, but you can purchase LED alternatives that will equal the light output that only uses 4 watts - and produces no heat for your AC to have to cool!
  • Lumens - Lumen is the standard unit for measuring the amount of light produced by a light source.  It is equal to the amount of light hitting one square foot of surface one foot away from the light. Essentially, the higher the lumens, the brighter the light.
  • Lumens per watt - This truly shows the efficiency of the LED product. For example a 200lm product consuming 3 watts of electricity = 66 lumens per watt. Lumens per watt vary from product to product depending on the LED chip used, how hard the product is being run, and the construction of the fitting and how effective the heat sink is at removing the heat.  LED Specialists only carry lights that offer the highest level of lumen output/watt (most efficient) to maximise your energy savings, while making sure that we are not sacrificing the quality of light.
  • Beam angle - The beam angle is something you need to pay attention to when choosing the right LED lighting for the space. This is as important as the Lumens. Beam angle indicates the spread of light from the light source. A narrow beam gives a concentrated light which is better for accent lighting. A wide beam gives a more general, softer light.
  • Light Colour - the colour temperature of a product is a linear scale of measuring the colour of light and measured in degrees, Kelvin (k).  Warm light (2700k) is measured in lower numbers, while daylight white (4100k) and cool white (6000k) in higher numbers. It is down to personal preference whether you choose the tone of the light you want.  Typically, home owner prefer Warm White, business settings prefer Daylight White, and industrial, task oriented settings often choose Cool White.
LED (Light Emitting Diode) lights is a light that uses a semi-conductor chip to produce the light, as opposed to a filament (incandescent) or gas (fluorescent).  The color of the light from the LED is a function of the ingredients (materials) and recipes (processes) that make up the chip.  LED lights have a variety of advantages over other light sources:
  1. High-levels of brightness and intensity
  2. Can run on low voltage (safer)
  3. Use much less power ( 50 - 85% less)
  4. Low radiated heat (saves on AC costs indoors)
  5. High reliability (resistant to shock and vibration)
  6. No UV Rays or mercury (healthy and environmentally safe)
  7. Long source life (from 25,000 - 70,000 hours - FAR longer than any other light type
  8. Dimmable and colour variable ( allows you to choose the exact type of light intensity and shade/colour you want)