Bright Green

So the LED repeaters have begun to spread through SSL land - the only LED repeater I knew of until now was Gloucester Road e/b.

the w/b at victoria and the e/b at embankment plat repeaters are indeed LED direct replacement fittings with a standard lamp fitting on them for easy fitment i put them in on the 4th of december they are on trial before they get approved next site is south ken but this time they going in the home signals they cost over £200 each and yes they are very bright after i put them in all i could see was spots for a few minutes the ones at gloucester road are different spec the whole lens is a LED ( like JLE ) so basically it doesnt have a lens unlike the plat repeaters at victoria and emabankment

the bulbs used in plat repeaters are £5.10 each they are like a normal household lamp but have 3 pins on the bottom are only 100v and they are 33.5 W

the plat repeaters and fog repeaters use the same type of bulb and 3 years ago there was a very dodgy batch and these would last only for a couple of hours some even blew as soon as they got installedi had to check the voltage on the w/b plat repeater at sloane sq as you say it keeps blowing but the voltages were fine the only thing it can be put down too is the vibration of the signal head but according to some experts at metrocrap if the voltage is 110v instead of 100v this can shorten the life of the bulb by upto 20%

well according to the sheet at work they are in at baker st and farringdon there is LED FRL at lillie bridge depot

Not if the assurance paperwork doesn't go through... There was an issue on the JLE about the output colour in low temperatures which had to be overcome.

There is another slight difference - the both the yellow and the green are slightly different to the colour using a lamp.