Return to the thumbnail page Display/hide file information See previous file See next file

2 x 13 watt PL fluorescent work light

Click to view full size image

This is an interesting "K Tools International" work light. It had 2 electronic "rapid start" 2 pin PL lamps in it and they were "boring" so I put in a Philips regular preheat lamp in it and left the other "rapid start" one. In the place where the starter would be, this one has a little circuit board, by what I can tell. It starts just like a rapid start, not quite instantly, but not "blinky" either. I prefer the preheat one! It does not have a choke or regular ballast, but instead has a little circuit board with two little transformers soldered to it. Lamps are independently switched via two rocker switches. It has a 15 amp receptacle on the back of the housing and a #12-3 cord. A youTube video of it in action is here:
http://www.youtube.com/watch?v=D6E3Nssn0TY

0316001824.jpg 0309001925.jpg 0309001918.jpg 0306001830.jpg

File information

Download: Download this File
Filename:0309001918.jpg
Album name:DieselNut / Preheat Fluorescents
Keywords:Lanterns
File Size:66 KB
Date added:Mar 09, 2010
Dimensions:1024 x 768 pixels
Displayed:74 times
URL:http://www.lighting-gallery.net/gallery/displayimage.php?pos=-42558
Favorites:Add to Favorites
Comments
DieselNut
Jr. Member
**

Karma: 6
Offline

Gender: Male
Posts: 87

John Graves


View Profile Personal Message (Offline)
Mar 09, 2010 at 07:02 PM
http://www.youtube.com/watch?v=D6E3Nssn0TY
link should show up here.

Preheat Fluorescents forever!

I love fluorescent lighting, especially "old school" technology and I love diesel engines.

pjc
Administrator
Jr. Member
*****

Karma: 11
Offline

Posts: 62



View Profile Personal Message (Offline)
Mar 09, 2010 at 09:06 PM
I fixed your link in the description. You have to use BBCode. For example
[­url=http://www.example.com]Example![­/url] or
[­url]http://www.example.com[­/url].

I don't think I've ever seen a PL lamp with an electronic starter. I suppose it would still be considered preheat. As far as I know, the electronic starter operates in the circuit just like a regular glow starter would, but they are designed to close and open at just the right time so the lamps starts on the first attempt. They're not nearly as fun to watch as the old fashioned type, of course .

Patrick Collora, Administrator
Lighting-Gallery.net

dor123
Full Member
***

Karma: -9
Offline

Gender: Male
Posts: 242


View Profile Personal Message (Offline)
Mar 10, 2010 at 04:19 AM
DieselNut: Starters of any type can't rapidstart the lamp, hence rapidstart magnetic ballast can be operating without a starter at all. Fluorescent starters of all types, electronic or mechanic, are here to preheat the lamp electrodes. and so their operation is always "preheat start" regardles of the ignition speed.
pjc: Electronic starters for fluorescent indeed operate in the same circuit like glow starters. However like these for HID, its operation priciple are much different. They are not contain any moving parts but a capacitor and other electronic components to provide the preheating and the pulses. Altough the ignition still make a clicking noise like with glow starters. Of example of behavior of electronic starters, the electronic starters inside the "Electronic Start" preheat ballasts from Shaingot factory in Israel operate thus: One pulse (Which is always fails but usually not visible to the naked eye), then the electrodes preheating to its maximum temperature its can, then another pulse that lit the lamp. If the ignition process failed, the starter stops and waits for about ~5 second and start the whole ignition process from the begining. In case of 50hz flickering lamps (EOL or rectification), the starter waits for several seconds while the lamp 50hz flickers until it will stop with this and if this is not happens until the waiting duration is over, the starter starts the whole ignition process from the begining.
DieselNut
Jr. Member
**

Karma: 6
Offline

Gender: Male
Posts: 87

John Graves


View Profile Personal Message (Offline)
Mar 10, 2010 at 07:36 AM
I will post pictures of the lamp. It starts between the speed of instant start and rapid start, but does not appear to "pre-heat" the filaments at all. I had another one like it several years ago that got broken. I opened up the cavity where the glowbottle starter would be and it had a little circuit board in there instead. The lamps (or similar ones anyway) are still available. Enertron calls them "Instant start" and they are interchangeable with the standard 2 pin preheat lamps in their magnetic preheat fixtures.

Preheat Fluorescents forever!

I love fluorescent lighting, especially "old school" technology and I love diesel engines.

Alights
Newbie
*

Karma: 2
Offline

Posts: 28



View Profile Personal Message (Offline)
Mar 14, 2010 at 06:45 PM
I have a similar one i will post pictures of one day (when i get the photo editor fixed) and mine fries the preheat ones very quickly, since the starter makes the electrodes heat up way too much. I think the starter would also fry the ballast electronic part eventually.
Medved
Hero Member
*****

Karma: 21
Offline

Gender: Male
Posts: 510


View Profile Personal Message (Offline)
Mar 15, 2010 at 12:08 AM
@dor123: You are not right. It really depend on the starter behavior:
- If it first only heat electrodes without generating high voltage and after generate high starting voltage without further heating, it is "preheat". So as first HV kick does not have to be successful and in mean time electrode cool down, the "preheating" has to repeat, hence the blinking on start.
- If it heat up and at the SAME TIME generate limited high voltage, both instantly just after power ON, it is "rapid start". HV pulses are not enough to start cold electrodes, but just enough to start hot ones, so the heating time before actual ignition is controlled solely by the lamp.
- If it first preheat electrodes like the "preheat", but then continue to heat them during ignition attempts, it is "programmed start".

All three methods are possible to implement into the "electronic starter" working in "preheat circuit".

The fourth method - "Instant start" need high energetic HV, what is the only method the preheat circuit might not be capable in all ballast implementation (lead, lag, resistive,...), so no "instant start starter retrofits" were ever offered, however it is possible on low wattage (argon) lamps at high OCV ballasts (e.g. F8T5 on series choke at 230V in proximity of grounded metal start instantly even without the starter).

No more selfballasted CFL