Questions tagged [ballast]
The ballast tag has no usage guidance.
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How much more energy-efficient is it to remove the magnetic ballast for an LED tube?
The diagrams for the GE T8 tubes have these alternative retrofit circuit diagrams:
On this website, 9W in Starter, it states:
....with a further ~9 Watts lost in the magnetic ballast...
I have ...
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How can you use ballast-powered flouresecent lamp outputs to power LEDs?
We have a 2G11-socket 36W germicidal UVC lamp in our air ducts (Honeywell UC36W1006), and since UV-C LEDs are readily available, I thought maybe I could make a PCB with a bunch of UV-C LEDs on it as a ...
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Is it possible to drive LEDs using CCFL inverters?
I have a Tektronix oscilloscope with a CCFL backlit LCD. The CCFL tube is toast and rather than replace it with another one that will fail, I figured I would use the opportunity to replace it with a ...
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Using a Larger MFD Capacitor with a UV Lamp Ballast
I am attempting to repair a UV lamp for curing resins and epoxies. I determined the capacitor was the problem and ordered a replacement (7C100M33R). I got the last one the site had available - and ...
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Proper ballast for UV-A fluorescent bulbs
I have been tasked with improving a certain UV curing box product which uses Philips Actinic BL TL-DK 36W UVA bulbs. These are usually used in large bug zappers so I suspect that they usually are run ...
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Trying to understand electron flow in a rapid start ballast fluorescent light system
While looking into what is required to upgrade a fluorescent tube light to a LED solution, I found that I don't truly understand what is happening with existing fluorescent solutions.
I understand the ...
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Why does the power factor of my fluorescent ballast seem to be impossible?
I have a ballast that's rated to run two 32 watt bulbs, which means (I think) that the working power is 64 watts.
The line rating of the ballast is 0.5A at 120V, which means the apparent power (the ...
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Easy to use jumper cable to bypass lighting ballast
I am trying to retrofit 22 high bay LEDs in an armature designed for tungsten halide bulbs (400 W). I understand that I need to cut the capacitor and bypass the ballast.
These fittings are in a hard-...
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Fluorescent tube ballast
I have a pair of old fluorescent tubes in my garage.
One works fine. It has the conventional ballast arrangement with a series choke together with a power factor correction capacitor connected between ...
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What is this component marked 10mΩJ?
Can someone help me to identify this component marked "10mΩJ?" I'm pretty sure it's a 10 mega ohm resistor, but I can't find it anywhere to buy one. Maybe a similar resistor can work, but ...
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Understanding the specs of an electronic ballast (UV-Tubes)
I got lost on the topic of selecting the right electronic ballast for 4 UV-tubes (Cosmolux S pink 15W). I have learned about magnetic ballasts and starters, about electronic ballasts and connecting ...
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Switching a fluorescent ECG with normal relays
I want to switch a ballast with a relay. The target lamp is rated at 120 W, but the (electronic) ballast states a 55 A inrush current. Does this mean that as soon as the relay is closed, 55 A will be ...
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Why would you place a resistor in series before AND after a diode (see simple circuit)?
For an assignment we had to first simulate a circuit (first with a Schottky then with a rectifying diode) in LTSpice and then do measurements on an actual circuit before answering a few questions. ...
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Motor voltage LED indicator is dead
I built an ESC for my Raspberry Pi. This ESC has LED indicators. The problem is that the motor LED indicator that indicates modulated 5 V is dead after days. This happened to two models. One has ...
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What is the possible reason that cause the failure (burnt) of PTC in an electronic ballast?
What is the possible reason that might cause the failure (burnt) of PTC in an electronic ballast?
I have been using this VOSSLOH SCHWABE brand electronic ballast and recently it has been burning up ...
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