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Megaman 12V 15W daylight CFL - full brightness

Megaman 12V 15W daylight CFL - full brightness

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There seems to be a driver inside the base instead of a simple HV inverter. See the strobe lines at the background.

8AE7F25D-C247-4B57-A847-FAAE94661661.jpeg 755593D1-8591-480D-A5A2-C975EDFA7829.jpeg A02F8901-D5AD-4961-B9BD-813CEC087400.jpeg E863512D-1860-482E-B0C9-45D8A6110C55.jpeg

Light Information

Light Information

Manufacturer:Megaman
Lamp
Base:E27
Electrical
Wattage:15W
Voltage:12V

File information

File information

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Album name:HU112 / Run-up tests and videos
Keywords:Lamps
File Size:334 KB
Date added:Jun 08, 2019
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dor123
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Jun 09, 2019 at 12:34 AM Author: dor123
It have an AC->DC converter and a 12V DC inverter inside, which operates the tube at HF AC. The lines are because not all the 50hz frequency is filtered. You can see this also with 230V CFLs.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

HU112
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Jun 09, 2019 at 12:43 AM Author: HU112
Why would there be an AC->DC converter in there?
This bulb is for 12V DC operation only and is polarised, which the central contact is positive while the outer screw is negative.

No more cheapy crappy Chinese junk, please.

toomanybulbs
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Jun 09, 2019 at 10:41 AM Author: toomanybulbs
the "ballast" is direct hf electronic.
at least in every one i dissected.
it makes no sense to have a inverter and traditional ballast in these.
and there is not sufficient room for all that anyway.
now if you are powering it with a poorly filtered supply or wallwart some 50hz will show up in the output.
dor123
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Jun 09, 2019 at 07:44 PM Author: dor123
If operating the lamp on 12V AC, how the current would be converted to DC for correct lamp operation?

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

toomanybulbs
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Jun 09, 2019 at 08:05 PM Author: toomanybulbs
this lamp runs from 12v dc.
it drives the lamp with hf ac.
the design is based on a royer oscillator.
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