Use Maintained emergency light as normal light in garage

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I rescued a couple of these fluorescent emergency lights from work and was hoping to use one of them in my garage as a normal on/off light. I don't want any battery backup, just a normal light. Based on information in posts online, I have removed the wires from the emergency module and battery and have rewired the unit following the diagram on the ballast as shown below.
When I turn it on, the tubes are only lit for about a second, then go off again (same for both units).

Have I done something wrong or are they both u/s?

Model details: (NVC NAK258/HF/M3 is a 2x58w, high frequency, 3 hours maintained emergency magnetic gear luminaire).

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You may just be playing with it, but the fitting really should be connected to an earth.
 
It's too unclear to see what you have actually done with the white wires
 
I looked at the units, and could not work out what they do, both seem to be connected to the emergency function, normally when power fails only one tube is maintained.

If they were mine I would remove the ballasts all together, and use led tubes.
 
I looked at the units, and could not work out what they do
One is the inverter and ones the ballast, they work together, In Normal mode the ballast runs both tubes from its own switched supply.

However the 240 v switched supply to the ballast first goes via N/C contacts on the inverter, that open on loss of the permanent feed at the inverter, then reclose when permanent power is reinstated to the inverter, these contacts have a slight delay before reclosing.
Usually Lin and Lout

The inverter has other contacts inside, with the white wires connected to them, there configured so when in normal mode the lamps connect to the ballast as per drawing on the white ballast.
These terminals are usually numbered as connections can vary as most inverters can do 1 or 2 tube fittings

Upon power failure the silver inverter cannot power 240v to the ballast to light the tubes due to the limited battery power.

Instead the relays reconfigure the white wires to bypass the ballast and let the inverter supply direct to the lamp ends, often one tube only.
Once the powers back to the inverter it switches back the white wires

The reason the inverter delays the ballast feed Is to allow the endcaps time to reconnect, before the switched supply, otherwise the ballast may shut down due to sensing miswire or no lamp.
That's why there's always a slight delay when switching back from test mode before the fittings light..
Hope makes sense
 

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