I have to say I was impressed with the improvement on these LED fittings from just a few years back.
I will be honest though, its the 1st time I have seriously considered them as a viable alternative to tubed fittings.
The ones I looked at are fully compliant with LG3 and 7 requirements for...
6 foot single fluorescent light batten fitting with tube
fitted with high frequency control gear
NEW light, NEW tube
£13 each
We are in Northern Ireland so postage would be £10.95 48hr tracked upto 70 kilos
1 fitting with tube weighs 2.5kg
DanielSon
Thread
fluorescent
fluorescent lights
frequency
lighting
lights
new
Hi guys,
Just wondering if you can help me on this one,
I have a RLC series circuit the values are as below;
R = unknown
L = 800mH
C = 300uF
from there I have calculated;
the resonant frequency to be 10.3Hz
the capacitive reactance 51.50 ohms
The reason I need to know is I need to work...
thepipersson198
Thread
access
electrical work
frequency
impedance
out
resistor
value
Hello,
i am having to install 2x 16A commando outlets in a factory that are ran from a generator outputting 127v 3 phase @ 200Hz.
Does anyone know if I can run the 200Hz wiring back into the main trunking to get to the next room (where the outlets are required) which already has normal...
I'm led to believe that LEDs (as in the actual basic semiconductor device themselves) are comparatively strong emitters of radio frequency interference. Don't know about how much power or where in the spectrum but that's what I was once taught. Just wondering whether anyone has seen this as a...
I have just bought what I thought was a 'high frequency' fluorescent light for the kitchen, thats what it was advertised as.
It arrived in packaging with 'HPF' on it which is 'High Power factor' which I dont think is high frequency.
I wouldn't be too bothered but it doesn't work! The picture...
I've been down the local wholesalers tonight and wanted to buy a small light with a sensor/pir built in. Nothing spectacular, so he starts talking about a High Frequency Sensor Module to put in a Knightsbridge opal bulkhead, it uses microwaves. It was late In the day so I agreed to take it. Now...
Hello all, Just thought I'd check some opinions on testing frequency, with the changes in the guidance advice.The latest(4th) edition has revised some of the intervals for certain types of appliances such as IT. Would you consider that the changes can be applied retrospectively, ie if an...
Hi can anyone answer the following question. I am aware X=2piFL how do I use this to find the answer to the following:
A reactor allows a current of 15 A to flow from a 230 V 50 Hz supply. Determine the current which will flow at the same voltage if the frequency changes to (a) 45 Hz, (b) 55...
We intend to install VFDs for the motors installed at our facility. Can anyone tell/share the IEC/NEC/IEEE code/standard showing upto what kilowatt rating of the motor we can use the DOL starter type and after what kilowatt rating we have to install VFD. For example, I seen a Electrical...
Had a call from an office to check some faulty lights, and having not done a lot of work on high frequency panel lights, I just wanted to see what people's thoughts are.
The tube is flickering, replaced the tube, same problem, so must be the ballast. Just wondered whether people just replace the...
Hi can anyone tell me where I can download a pdf for the frequency of ecr.
Need to send something to a client but dont have a scanner to scan page from regs. Thanks
Hi. Does anybody know where I can find on pdf doc bs 7671 frequency of ecrs on different property types?
I need to send info over to a client via email but havent got a scanner to send the page from regs and cant find any info on internet that would be suitable for me to send as it either doesnt...
Up for seel
VFD were used between 0 and 7 months. Many of them were used only were installed and then removed.
All VFD will be delivered in original boxes. Each VFD is tested before shipment.
VFD CONDITION IS LIKE NEW. 100% QUALITY GUARANTEE OR MONEY BACK ! DO NOT MISS THE BEST PRICE IN THE...
I am a Beginner.
I install a program ABB ACS800 ( Winder/Unwind , Application Program) .This inverter is used communication card to be run.
I want to upload program to this inverter.
This inverter program upload to another ABB inverter to download this program.
I want to change (99.02...
mr.zmmyint
Thread
another
application
frequency
inverter
program
upload
wind
Hi,
I'm replacing low voltage halogen with MR11 and MR16 LED bulbs. AC supply would be simplest because of existing wiring, but I'm concerned about LED flicker:
Characterizing and Minimizing LED Flicker - Lighting Solutions | DigiKey
I'm looking at varilight transformers:
VARILIGHT...
danieru
Thread
flicker
frequency
low voltage
output
transformers
varilight
voltage
volts
As title, very good condition, only 5 months old and are as near as makes no difference brand new. All come with louvres but no tubes.
The fittings are of very high quality from Key Lighting (Model: Profile T8) and are sold new for £75.00 + VAT each. I'd be happy to take £20 each or £120ono for...
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