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Daily Light Integral

Daily Light Integral

The term Daily Light Integral, or DLI, is used to describe the total quantity of light (PAR) delivered over the course of an entire day. The daily light integral is reported as the number of moles (particles of light) per day.
LEDs vs HID vs CFLs

LED vs HID vs CFL's

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LED's are considered heavy-duty, they have no electrode or filament, and they are shock & vibration resistant. Led's turn on instantly, the do not flicker and they create focused light. LED"s are a higher upfront cost but as compare to that of their predecessor there are virtually no maintenance expenses. Unlike incandescent bulbs, which use a filament, or compact florescent lamps (CFL's), which rely on gas, LED's create light by exciting electrons. Inside each LED is a semiconductor material consisting of positively and negatively charged parts. When the light is turned on and an electricity strikes the semiconductor, electrons become charged and begin to flow from a negative to a positive layer within the semiconductor.