Can one use 20W fluorescent tube lamps as a substitute to 40W lamps?

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matroosje asked:


I bought a second hand, mini sun bed to sustain a few bonsai trees, this winter, indoor. The sun bed has a build in ballast to power 6X40W fluorescent lamps, thus a 240W system (220V~50Hz). Unfortunately the UV-lamps do not emit the best spectrum needed for cultivation and growth. The lamps I need to replace the UV-lamps with, has to be 590mm in length, but the highest wattage, available in this length is 20W. I plan to keep 2 of the UV lamps in the system. I want to know if I am going to blow the 20W lamps by I replacing the old 40W lamps. If so, why?

Duane
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    • This entry was posted on Wednesday, March 26th, 2008 at 5:44 am and is filed under Lamps. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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    3 Responses to “Can one use 20W fluorescent tube lamps as a substitute to 40W lamps?”

    1. themeindzeye Says:
      March 26th, 2008 at 8:47 pm

      For your lamp that start blowing things on fire.
      For your lamp that start blowing things up and setting things up and setting things up and setting things on fire.

    2. flapjack Says:
      March 28th, 2008 at 10:16 am

      Should be fine.

    3. sndemailhere Says:
      March 30th, 2008 at 9:21 pm

      The 220v 50hz so that the 20w lamps ensure however that shouldnt be problem.
      For 220 volt operation am guessing you mentioned the 20w lamps you mentioned the fixture they will be problem.