Philips 50 watt bd17 hid ceramalux high pressure sodium light bulb model 460840 21 97 21 97.
What is a high pressure sodium light bulb.
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Sunlite 35 watt ed17 high pressure sodium bulb medium base e26 2250 lumens clear hid light bulb 2 pack model hd02497 2 21 50 21 50.
We also offer special conversion metal halide bulbs that can be used with fixtures intended for high pressure sodium light bulbs.
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If the tube is black the bulb is definitely burned out.
A high pressure sodium hps light is a type of growth light that is commonly used for indoor gardening.
Observe the interior gas tube for any signs of discoloration.
Two varieties of such lamps exist.
A high pressure sodium bulb produces light that is reddish yellow while metal halide bulbs produce a much more balanced white light that has more of the visual spectrum.
This particular light stimulates plant growth by diffusing the portion of the electromagnetic spectrum that is ideal for the whole process of photosynthesis.
A metal halide bulb produces about 65 110 lumens of light per watt while a high pressure sodium bulb produces about 96 150 lumens of light per watt.
The most common problem with a high pressure sodium light is the bulb.
A sodium vapor lamp is a gas discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.