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I have quite a few LED lamps now. Started with GU10 and was mainly because the cold cathode 11W lamps stuck out of the holder too far and were too much spread to read with. And very little difference in price.
Next major swap CFL to LED was in living room 8W to 3W again price wise very little in it so LED made sense.
But last one changed because lazy, £15 for whole fluorescent fitting compared with £17.09 for LED tube.
As I compare fluorescent to LED I find some very good fluorescent I have a 11W folded fluorescent (83 lumen per watt), which is very good lumen per watt, and some LED's seem to be very poor lumen per watt especially where designed to dim or colour change.
In spite of EU rulings I see many LED lamps for sale with no lumen figure given which I assume means they are poor lamps? My LED bulbs which give lumen are 71, 76, 83, and 100 lumen per watt.
I looked up some figures for fluorescent tubes used Screwfix site and a 14W tube was 96 lumen per watt and 70W tube 85 lumen per watt so not really far behind LED and far cheaper. I realise that the output reduces with age, but there does not seem a great advantage.
There were some Small Edison Screw- Filament Candle Shape LED Bulbs with 100 ~ 110 lumen per watt but most were 60 ~ 76 lumen per watt the 11W folded fluorescent was better than most small bulbs. Coiled fluorescent 8W still 62.5 lumen per watt yet I know from my own experience I swapped 3600 lumen of CFL for 2500 lumen of LED and there were brighter.
So I can seen point of LED over very small fluorescent as little price difference, but I hear of firms doing a massive tube change and moving to LED why?
Next major swap CFL to LED was in living room 8W to 3W again price wise very little in it so LED made sense.
But last one changed because lazy, £15 for whole fluorescent fitting compared with £17.09 for LED tube.
As I compare fluorescent to LED I find some very good fluorescent I have a 11W folded fluorescent (83 lumen per watt), which is very good lumen per watt, and some LED's seem to be very poor lumen per watt especially where designed to dim or colour change.
In spite of EU rulings I see many LED lamps for sale with no lumen figure given which I assume means they are poor lamps? My LED bulbs which give lumen are 71, 76, 83, and 100 lumen per watt.
I looked up some figures for fluorescent tubes used Screwfix site and a 14W tube was 96 lumen per watt and 70W tube 85 lumen per watt so not really far behind LED and far cheaper. I realise that the output reduces with age, but there does not seem a great advantage.
There were some Small Edison Screw- Filament Candle Shape LED Bulbs with 100 ~ 110 lumen per watt but most were 60 ~ 76 lumen per watt the 11W folded fluorescent was better than most small bulbs. Coiled fluorescent 8W still 62.5 lumen per watt yet I know from my own experience I swapped 3600 lumen of CFL for 2500 lumen of LED and there were brighter.
So I can seen point of LED over very small fluorescent as little price difference, but I hear of firms doing a massive tube change and moving to LED why?