Constantly blowing bulbs

Discussion in 'Landscape Lighting' started by chesie, Nov 10, 2005.

  1. chesie

    chesie LawnSite Member
    Messages: 79

    We installed 9 well lights within a sidewalk 2 weeks ago. Since then we have gone through 12 bulbs. They are the PAR 36 style bulbs that have the stacon connectors. The bulbs keep blowing(commonly referred to as smoked). The volts at the fixtures are reading 11.3- 12.0v. Only 3 fixtures per run on 10 wire. Anybody have experience with this? I am stumped and the manufacturer has yet to come up with something.
  2. Frog Lights  LLC

    Frog Lights LLC LawnSite Member
    Messages: 191

    I think they are getting too hot. What is the wattage? Try using a bulb of lesser wattage. This is especially more of a problem if the well light is completely sealed. (water tight).
  3. jd boy

    jd boy LawnSite Member
    from nw ohio
    Messages: 173

    how would they be getting too hot? his voltage is correct. That is something I have only seen with incorrect voltage.
  4. Frog Lights  LLC

    Frog Lights LLC LawnSite Member
    Messages: 191

    Higher wattage will put out more heat. If the space for the bulb is designed for say a max. wattage of 25 and a 50 is used, it might damage the fixture and shorten the life of the bulb. Wattage is also a function of current draw not just voltage.
  5. chesie

    chesie LawnSite Member
    Messages: 79

    These are 25watt bulbs. The cover is an open grate and there is a 6-8" air space underneath. So I don't think overheating is my problem.
  6. Dreams To Designs

    Dreams To Designs LawnSite Bronze Member
    Messages: 1,406

    Chesie, have you tried changing the bulbs to another manufacturer or run number. Defective product does make it to the street a lot. Is there a time that has been witnessed when these lamps are smoked? At startup, when they have been on all night, or perhaps when the sprinklers are hitting them first thing in the Am if they are dusk to dawn. You say they are mounted in the sidewalk. What type of walk? Concrete, paver or dry laid stone? Maybe some pictures would be helpful to understand. What brand of fixtures are you using? Could you replace one fixture with another brand to determine if it is the fixtures that may be causing your headache? If the lamps are getting "smoked" and nut just burning out, that would be indicative of a short. Are all the fixtures blowing lamps or just certain ones? Let us know your progress.

  7. Frog Lights  LLC

    Frog Lights LLC LawnSite Member
    Messages: 191

    In view of these details, I like Kirk's thoughts. Switch to a different brand of bulb. Check if the water is soaking the bulb .....?
  8. Phillylawnboy

    Phillylawnboy LawnSite Member
    Messages: 6

    some transformers do not operate properly if there is a light within 4 feet of it. What brand of lights are you using?
  9. NightScenes

    NightScenes LawnSite Silver Member
    Male, from Kingsland, Texas
    Messages: 2,214

    I had a huge problem with the 18 watt halogen and the 25 watt GE par 36 lamps. GE is no longer manufacturing the 18 watt lamp and I switched to sylvania. Since I switched, I have had no problems.

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