Sunpark SL15 ballast - Electronic Circuits Projects Diagrams Free

jimg · 11th May 2007, 06:24 PM

Last year I bought 20 fluorescent fixtures for use in the garage and shop. They were the economical workshop fixture available at Home Depot for $9. They use a SunPark SL15 electronic ballast. I have had several of the ballasts fail. The problem always seems to be two resistors, a .22 ohm and a 2.2 ohm. I was wondering if anyone else has bought any of these fixtures and had the same problem and done any experimenting on the ballasts to see if they can be resurrected. A new ballast is $6.50 so not really economical to replace in an $9 fixture, but if it's just two resistors, I would happily replace them.

ericgibbs · 11th May 2007, 06:33 PM

hi jim,

This may help?

http://forums.gardenweb.com/forums/l...125528645.html

https://s.hostingprod.com/@www.sunpk.../ssl/index.php

jimg · 11th May 2007, 09:16 PM

Thanks Eric. I've been to those sites before. I would still like to hear from anyone who's taken one apart and knows about those resistors.

**Nigel Goodwin** · 11th May 2007, 09:52 PM

It won't just be the two resistors, they will have blown (as fuses) when the ballast failed, probably the output transistor(s) is/are S/C, and most probably they failed because electrolytics have dried up.

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11th May 2007, 06:24 PM	(permalink)
jimg	Sunpark SL15 ballast Last year I bought 20 fluorescent fixtures for use in the garage and shop. They were the economical workshop fixture available at Home Depot for $9. They use a SunPark SL15 electronic ballast. I have had several of the ballasts fail. The problem always seems to be two resistors, a .22 ohm and a 2.2 ohm. I was wondering if anyone else has bought any of these fixtures and had the same problem and done any experimenting on the ballasts to see if they can be resurrected. A new ballast is $6.50 so not really economical to replace in an $9 fixture, but if it's just two resistors, I would happily replace them. Last edited by jimg; 11th May 2007 at 06:26 PM.

11th May 2007, 06:33 PM	(permalink)
ericgibbs	hi jim, This may help? http://forums.gardenweb.com/forums/l...125528645.html https://s.hostingprod.com/@www.sunpk.../ssl/index.php __________________ Eric "Good enough is Perfect" PIC tutorials: Gramo's: www.digital-diy.net/ Bill's: www.blueroomelectronics.com/ Last edited by ericgibbs; 11th May 2007 at 07:02 PM.

11th May 2007, 09:16 PM	(permalink)
jimg	Thanks Eric. I've been to those sites before. I would still like to hear from anyone who's taken one apart and knows about those resistors.

11th May 2007, 09:52 PM	(permalink)
Nigel Goodwin	It won't just be the two resistors, they will have blown (as fuses) when the ballast failed, probably the output transistor(s) is/are S/C, and most probably they failed because electrolytics have dried up. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk