210.63 requires an accessible receptacle for servicing HVAC equipment.
210.70(A)(3) and 210.70(C) require a light for servicing the equipment.

Does the use of a 'keyless' lampholder, with a receptacle in the base, fulfill both of these requirements?

I think it meets code but I still don't like it, Ive seen too many of them mangled and pulling away from the box which could be solved by installing properly. Id rather see a duplex receptacle.

that kind of switch i am not too conftable with it but i know it do meet the code but really IMO it should have real duplex repectale with GFCI that is more safer and also with the lumiaiare i think it will be more even safer have the lumiaire enclosed instead of bare bulb there in case some hit it by accident and light go out.

Merci, Marc

If it has a pull chain, it not a keyless then.... )

I would say it TECHNICALLY meets requirements, but I don't like it.

I see three problems:
One, the bulb is not protected from breakage.
Second, the socket on those dinky things are sometimes not rated for even 15A.... 660W is common.
Last but not least: GFCI would have to be provided by an expensive breaker.

Since when are attics required to have GFCI protection?

Requirements have been met, yes

At least it appears that somebody shortened the chain. I wouldn't want to have the full chain dangling down right in front of an open disconnect.

Hardwareguy, I believe that UL would test that receptacle to the same standard as any other receptacle ... which is not the same thing as using a screw-in adapter to the light socket.
IF such an adapter were used ... I think your point about the 600 watt limit would be on target, ant the receptacle would not qualify.

Paul - Sharp eye! Actually, over here the fixtures come with a short chain (as seen in the pic), and a simple string that attaches to the chain if you want a longer tail.

Yes, this installation meets the requirements of 210.63 and 210.70(A)(3). The pullchain w/ grounded receptacle is a quick and easy way to meet code. You're in, you're out, especially when that attic is HOT!!