light bulb

Compact fluorescent light bulbs have replaced our old favorite incandescent bulbs.  They are suppose to save energy, last 5 to 8 times longer, and save money in the long run.   They cost more to purchase, but the thought is that if the bulb lasts longer and uses less energy, it will be worth it.   Well I've replaced far too many cfl's in a short period of time to make any of this true.

I was visiting a friend the other day and as we walked up the stairs I commented on the odd shape of her light bulb.  She said that she had just put it in and as she turned it on, it flashed on and off in a very deliberate way.  We wondered why and she tried it again and again.  Each time, it flashed twice.  Have you seen this?