apprentisorcier
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- Nov 9, 2019
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Our building has a lift where one of the lights burned out and our building management got a 479£ quote from a lift management company for fitting a led replacement.
I took a look at the light bulb and found it's a CFL Philips Master PL-C 18W/830/4P one, available for 3.8£. I bought one, replaced it, and it works.
I then tried buying a couple of Philips CorePro LED PL-C 6.5W 830 4P which in theory were marketed as lamp-by-lamp replacements and tried them in: both light bulbs flickered heavily for a few seconds and then died.
I read a little bit around and it seems that there might be at least two types of issues:
- the LED lights are incompatible with integral emergency packs
- not all of the HF ballasts that might drive the CFL lights are compatible with the LED ones (see https://www.novelenergylighting.com/media/uploads/Philips-Corepro-PLC-4PIN-Compatibility-List.pdf)
I see ballasts cost 10/17 quid, and installation seems a matter of connecting 7-8 wires. I'm not sure about battery packs, but it looks like there are LED-compatible emergency packs going for about 40£ and installation of similar complexity.
My question is: given all this, is a 479£ quote reasonable?
I took a look at the light bulb and found it's a CFL Philips Master PL-C 18W/830/4P one, available for 3.8£. I bought one, replaced it, and it works.
I then tried buying a couple of Philips CorePro LED PL-C 6.5W 830 4P which in theory were marketed as lamp-by-lamp replacements and tried them in: both light bulbs flickered heavily for a few seconds and then died.
I read a little bit around and it seems that there might be at least two types of issues:
- the LED lights are incompatible with integral emergency packs
- not all of the HF ballasts that might drive the CFL lights are compatible with the LED ones (see https://www.novelenergylighting.com/media/uploads/Philips-Corepro-PLC-4PIN-Compatibility-List.pdf)
I see ballasts cost 10/17 quid, and installation seems a matter of connecting 7-8 wires. I'm not sure about battery packs, but it looks like there are LED-compatible emergency packs going for about 40£ and installation of similar complexity.
My question is: given all this, is a 479£ quote reasonable?