Frequently Asked LED Lighting Questions
Here are a few of our most frequently asked questions. If you don’t find the answer to your questions, please get in touch at 613.723.8528
What does LED stand for?
LED stands for Light Emitting Diode, and as the name suggests, they are diodes – encased in plastic – that emit light. A diode is a simple semi-conductor device that permits current to flow in one direction. Semiconductor diodes are a junction of two materials. One material has a surplus of positive charge, and the other a surplus of negative charge. When a forward voltage is applied, the two are brought together to release light energy – thus are ‘light emitting’,
Is an LED fixture a bulb?
While an LED fixture may appear to be a bulb, it isn’t. As mentioned above, LED’s are tiny semiconductors encapsulated in plastic (which protects their components and helps to focus the light), and typically mounted on a circuit board.
What’s the difference between an incandescent bulb and LED fixture?
Light from an incandescent is created when electricity heats up the filament, causing it to glow and generate heat… which, in turn generates light. The majority of the energy created is wasted heat, not light.
An LED fixture is essentially the opposite, in that light is created through a relatively cool process. When electricity is applied to a semiconductor (usually comprised of the components – gallium, arsenic and phosphorous), they’re stimulated by the movement of electrons, which create photons. Photons are the light visible to us.
Does an LED fixture have a wire filament?
No, an LED fixture operates with completely different components. Because they’re diodes, electricity can only move in one direction. Much like the familiar positive and negative terminals of a battery, the (+) anode is where the current comes in and the (-) cathode is where the current goes out.
Incandescent bulbs are omni-directional in that they project light in every direction, while LED fixtures are designed to project light in specific directions or angles (ex: 20°, 50°, 120°, etc.).
Why do LED fixtures use such little power?
Since an LED fixture doesn’t use a filament that creates light through heating, and produces light with very little heat, they are much more efficient and cost-effective to operate.
Does an LED fixture produce heat?
An LED fixture produces very little heat – and any noticeable heat is usually the result of components on the printed circuit board and not the LED itself – as compared to an incandescent bulb that uses heat to produce light.
Are LED fixtures affected by extreme conditions?
An LED fixture is manufactured to perform in harsh environments and functions well in temperature ranges -40° C to over 80° C… with no delay or warm up time.
Does the light produced by LED fixtures attract insects?
Because most insects perceive entirely different light spectrums and are attracted to ultraviolet light, most can’t perceive the light an LED fixture produces… and so won’t be attracted to it.
How long will an LED fixture last?
LED fixtures are rated by their manufacturers to operate under normal conditions for many, many years.
Why are LED fixtures more expensive than incandescent landscape lighting fixtures?
While a single LED can operate as a standalone device, when grouped or clustered – as they must be in an LED fixture – they need other components, including a circuit board, driving components and a weatherproof housing to endure the elements.
As a result, the cost to manufacture the fixture is somewhat higher then those that house incandescent bulbs. Bit since the LED fixtures use up to 80% less electricity to operate, when amortized over a few years, LED fixtures are quite a bit less expensive, over all, when compared to their incandescent cousins.