
Be it non HF or HF yes there is a difference between makes. Often hard to quantise however. With non HF ballast it's down to voltage. At X volts the unit will start to work, as the voltage rises then so will the current used but not like a simple resistor ohms law goes out of the window. So if your house has a supply of 240 volts most of the time and you select a ballast that will start a tube at 230 volts then that will work great, but if your house is at 230 volts most of the time then the same fitting will fail to start due to volt drop. But buy a fitting designed for 220 volt and run at 240 then may say 60W but will use more like 100W.
This is the main advantage getting a HF ballast it auto adjusts to voltage variations however here we start looking at fail rates. When a tube starts to flash swapping it for a new tube and most HF filling will last 25 years. However ignore that sign that the tube is on it's last legs and you could end up swapping the HF ballast with every tube change. Some units stand abuse better than others.
As to LED in the main the LED has half the output to fluorescent. Used in corridors they work well, but in work rooms you may need to double the number of lamps.



If ordering florries from TLC, they won't deliver the tube unless its within thier local delivery area from one of their stores.
See TLC's Fragile Goods guide
https://www.tlc-direct.co.uk/Information/delivery/DeliveryRestrictions.htm#FragileGoods
Can you still get fat tubes ? I want 4 new ones for my double garage. The old ones are about 20 years old and I'm sure they're not as bright as they were
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