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Oddly cheap emergency lighting

me1899
Hi All


I was wondering if anyone had come across the below:

https://www.lighthubdirect.com/collections/led-bulkhead-lights/products/14w-led-emergency-maintained-non-maintained-round-dome-bulkhead-light-3hr-white-ip65


Basically a 14W bulkhead with LiFePo4 battery, 3 hrs, 1000 lumens with 300 lumens in emergency mode - all for 30 quid.


That does not sound right to me cost wise - has anyone used this brand? if it is that cheap there must be something funny. I am going to have a read of BS EN 60598 to see if I can figure out anything, but just seems weird.


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    Exactly. I was comparing it with 1000 lumens at 14W on mains, which is 71.4 lumens per watt. Even if the mains driver isn’t particularly efficient, something doesn’t quite stack up here. 


    Regards,


    Alan.
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    Exactly. I was comparing it with 1000 lumens at 14W on mains, which is 71.4 lumens per watt. Even if the mains driver isn’t particularly efficient, something doesn’t quite stack up here. 


    Regards,


    Alan.
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