Thanks for the replies gents. Boy, talk about confusing though! This E2 must have been one of those "slipped through the cracks" numbers. It's an older one because the clip is attached to the head assy. and it has the bright shiney silver color. I know I bought it well over a year ago. I still have the original box and everything that came with it was in the box, and I have not purchased any extra anything for this E2. This thing came with THREE LA's! The MNO1, MNO2 AND an MNO3. And get this, inside the instruction leaflet, it says; "The MN01 lamp produces 15 lumens of light, the MNO2 produces 60 lumens of light and the MNO3 PRODUCES 25 LUMENS OF LIGHT! I thought the MNO2 produced 25 and the MNO3 produced 60? I'm reading the leaflet as I type this and it says so right here! The MN LA's are unmarked but color coded and the one I've been using all this time has the "ivory" colored collar and the leaflet says the ivory color LA is the MNO2 and as stated above, produces 60 lumens. Like I said earlier, CONFUSING! One last thing, is a Pyrex lens available for the E2? I think they come standard with them now but this doesn't have Pyrex.