|LED DESIGNER POST TOP 40W/50K/120-277V/BLACK/V2-SL®
A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
The wattage value of a High Intensity Discharge (HID) bulb of similar brightness.
Color Rendering Index is an international system used to rate a lamp's ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more accurately colors generally appear. CRI differences among lamps are not usually visible to the eye unless the difference is more than 3-5 points.
A rating of the initial light output of a bulb, rated after 100 hrs of operation. Lumens are a measure of how much light falls on one square foot of area, one foot away from the light source.
|Average Rated Life (hr)
Average Rated Life (hr)
A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.
|Operating Temperature (°F)
Operating Temperature (°F)
The ambient temperature in which the product can safely operate.
|-40 to 104
For ballasts and fixtures, height is the measurement of total vertical distance from the top of the product to the bottom expressed in inches.
Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.
The decorative finish of the item.
The primary direction in which a fixture directs its light, either up, down or ambient. In this context, ambient means that light is directed outwards into a room, as opposed to up at the ceiling or down at the floor.
Suitable for exterior or interior location in which uncontrolled liquid may drip, splash or flow on or against electrical equipment.
Approved by the DesignLights Consortium, a collaboration of utility companies and regional energy efficiency organizations. Approved products meet the consortium's standards for ensuring high-quality, energy-efficient lighting design. There are three categories, Standard, Premium and Horticultural, plus Luna for light-pollution minimization.
Code identifying the product in DLC (DesignLights Consortium) listings.