Your CF lamp should be fine in the fixture, as long as it physically fits.
Some wiring systems don't have grounds, but the two common types that do,
are non metallic cable, which, if grounding will have a separate bare or
green covered wire, which would be or should be connected to a metal box via
screw or clip. If the box is plastic, it may be floating inside the box. You
may have steel cable, where the armor of the cable is the grounding
conductor. It is connected to a steel box by a connector or clamp. In any
event you should connect that bare ground wire to a ground screw, either on
the box or on the bracket that the fixture mounts to



"anthony" wrote in message
ups.com...
I took down an old fixture in the kitchen that had a globe and was
hanging by a chain. I bought something similiar and was reading the
instructions, although I was just going to do it, until a part in the
instruction that took me for a loop. It has 2 wires and a very thin
copper wire, obviously a ground. It takes a 60w bulb max, but I plan
on getting one of those energy type of bulb that is low in wattage,
but bright as a 100w bulb. Is that okay? The other problem is the old
ceiling fixture does not show a ground, nor does the switch. So how
does one know? It is on other circuit for various part of the house,
( neat eh? ) and naturally has a circuit breaker. When I check the 2
wires that are in the ceiling i get no reaction. ..but when I go to
the switch on the wall that handles this, I do. How does one know when
the ceiling wires are safe to handle?