How to Test High Pressure Sodium Bulbs

Published: 19th May 2011
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High Pressure Sodium (HPS) bulbs are often used as the grow light systems of indoor gardening. Because HPS bulbs are more efficient in energy consumption and have better light spredtrum. They have taken the place of other powerful lights such as fluorescent lights or even neon lights.



High Pressure Sodium (HPS) bulbs are often used as the grow light systems of indoor gardening. Because HPS bulbs are more efficient in energy consumption and have better light spredtrum. They have taken the place of other powerful lights such as fluorescent lights or even neon lights. Like many other types of bulbs, High Pressure Sodium bulbs will stop working, or work with problems. For the safety of your grow light systems, you should test the bulbs with some time interval. You can test the bulbs with the following basic skills. Take it easy, you don't have to be professional.



1. Visually Inspect the High Pressure Sodium bulb for the followings. Any charring or blackness inside the bulb means it is burned out. Any electrical burns or corrosion on the contact point suggest the bulb is damaged or does not function properly. This will eliminate any visual or connection issues with your high pressure sodium ballast.



2. Replace the suspect bulb with a new one. If the new High Pressure Sodium bulb acts the same way as the old one, the problem may be in the lamp rather than in the bulb. Install the old bulb in another lamp. If the old bulb acts the same way in another lamp, the problem should be in the bulb. But if not, the problem should be in the lamp.



3. Check the voltage used on the bulb with a voltmeter. Check the power that's coming in against the power that the bulb is meant to handle; this could be a reason for any bulb malfunctions.



4. Check the electrical ballast. Remove the starter. Insert a short circuiter into the lamp holder. Now you will need to turn the system on. Your ballast is working correctly if you do not need any signs of smoke or any humming and buzzing sounds. You should perform this test for a minimum of 1 to 2 minutes



If you are uncomfortable around electronic diagrams and devices, it is best to seek the advice of a professional. Proper safety precautions must always be adhered to when testing high pressure sodium ballasts (always perform tests with electricity turned off).



The author of this article is a fan of indoor gardening. He use 400 watt HPS as grow light system.




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