LED Bulb Retrofit

BENEFITS of LED Replaceable Lamps

Long Lasting - LED's can last up to 50 times as long as comparable incandescent and halogen bulbs.
Cool - LED's produce 3.4 btu's/hour, compared to 85 btu's/hour for incandescent
Efficient - LED's use 25% less energy compared to a standard halogen bulb
Modular LED - convert existing lighting systems using the LED Retrofit Lamps without replacing the entire system, with the confidence of a full recovery of the investment. Approximate recovery of the initial investment will range with the hours used, and the initial cost of the lamps and labor saved in replacing the older lamps but typical range between 12-24 months
Internal Design - all Universal LED's are engineered for optimal use within an enclosed landscape lighting fixture.
Flexibility - LED systems that encapsulate the LED Emitter in the body of the fixture limit the ability to change a beam spread, or decrease or increase lumen output as landscape specimens grow on the project. In integrated LED fixtures, the entire fixture needs to be replaced when trees outgrow the original product supplied, giving the owner a very expensive and inflexible proposition.

See LED Catalog page

TERMINOLOGY

Kelvin (k) - Is the unit of measurement used to determine the temperature color of light produced by the LED. This is often referred to as correlated color temperature in the lighting world.
CRI -Color Rendering Index is a quantitative measure of the ability of a light source to reproduce the colors of various objects faithfully in comparison with an ideal or natural light source. CRI is very useful in color critical applications like photography or cinematography but have been criticized as not being a good indicator for use in visual assessment, especially for sources below 5000 Kelvin. There are many in our industry who are promoting a high CRI as a standard of measure when in fact this only applies as a critical aspect in the cinema and photography industries and is not a useful measure in itself in the landscape lighting industry. (See Wikipedia.org search CRI).
Lumen - Another unit of measure in the lighting industry is Lumen. Lumen is a unit of measure of the "total amount" of visible light emitted by a source. Lumen is defined in relation to the candelas as 1 lm = 1 cd sr. What many LED suppliers won't tell you is that while Lumens is an indicator of the "total amount" of visible light it will not tell you how the light source and the fixture housing will affect the lumen and how it translates into useful information like foot candles.
Foot-candle - The term foot-candle is a unit of illumination or light intensity widely used in the lighting industry. It conveys the luminance cast on a surface by a one candelas source one foot away. In the lighting industry foot-candles are a common unit of measurement used to calculate adequate lighting levels of workspaces in buildings or outdoor spaces. Full unobstructed sunlight has an intensity of approximately 10,000 fc. A full daylight reading measures approximately 1,000 fc and an overcast day will produce an intensity around 1oo fc. Twilight measures approximately 1 fc, a full moon .01 fc, and starlight .0001 fc.
LUX - 1 = 1 Lumen / Square Meter. 1 FC = 10.752 lux = 1 lumen/sq ft. Lux is often referred to as the metric version of foot-candle.

For specific LED retrofits opened in a new window see:

Representative Map
Universal Lighting Systems
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