
Yeah got a few kicking about the house now, they do take a little while to warm up but are fine after that and are brighter than the bulbs they replaced, also do remember
60w for the old bulb, 11w for the new one.. Work it out
Cost of bulb + cost to power it over it's a timespan (approx what 3,000hrs)
say 60w bulb at say 50p ..
3,000 x 0.06 Kw = 180 Kwh of power required for this 1 bulb.. what's power these days 9p/Kwh something odd.. -> £16.20 + 0.50 for the bulb - £16.70
Now for the CFL - cost £1.80 say (it's a phillips one) so that's
3,000 x0.011 Kw => 33Kwh of power at 9p/Kwh = £2.97 + £1.80 => £4.77
So even if it only lasts 3,000 hrs dues to lots of spikes / blips / repeated on/off which kills many things quicker, your still saving..
So I'll stop there, yes it's a pain you can't use them in certain fittings but it doesn't say you can't, it just says that it will reduce it's lifespan.
Now if they could get them to work with a dimmer switch I'd be loving it as 5 x 9 w much better that 5 x 40w.