A (Quantum) PAR Meter Explained
1:00
growlightmeter.com
A (Quantum) PAR Meter Explained
Measuring PAR is important whenever dealing with plant lighting. We describe what PAR meters, quantum sensors, and the according products produced by Apogee, LI-COR, Sun System, and HydroFarm quantum par meters actually mean and are.
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Parabolic aluminized reflector PAR Lamp Uses
Parabolic Reflector A lamp with a parabolic reflector is shown in the figure. The bulb is placed at the focus, and the focal diameter is 12 cm. (a) Find an equation of the parabola. (b) Find the diameter d(C, D) of the opening, 20 cm from the vertex. | Numerade
Parabolic Reflector A lamp with a parabolic reflector is shown in the figure. The bulb is placed at the focus, and the focal diameter is 12 cm. (a) Find an equation of the parabola. (b) Find the diameter d(C, D) of the opening, 20 cm from the vertex. | Numerade
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How to Shape Light Using a Parabolic Reflector
How to Shape Light Using a Parabolic Reflector
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Misc 1 - If parabolic reflector is 20 cm in diameter, 5 cm deep
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