Hmm... interesting debate about whether to purchase two complete lights or one light with various battery tubes.
I have the 4-in-1 light along with many other Fenix lights; On the one hand, it cost $74 to purchase the 4-in-1 which, as previously indciated, gives me a P2D head, 1CR123 / 1AA bodies and a diffuser. Purchasing these lights separately would cost me $125 ie. L1D CE $60 + P2D Q5 $60 + diffuser $5).
On the other hand, I currently have an older P2D (Q2 I think) head which I currently use with the L1D (1AA) body for around the house and I also edc the newer P2D Q5 head with the P2D (1CR123) body. So, if I didn't have the additional P2D head, then I would have to swap out the head in order to use the L1D body.
So, is it more usable to have a franken-light with multiple attachments or two separate lights? I would say that the 4-in-1 is a good deal and a cheaper way to check out different battery types and to tailor the light for a more specific purpose (whether that is necessary is debatable but, to each, his own), such as edc where you want a small light. For me, I like the P2D Q5 head but I probably would not have purchased the full L1D CE light so having the additional body lets me use 1AA's as an alternative - it just so happens that I have an older P2D head so it just saves me the hassle... but that didn't prevent me from trying out all my Fenix parts in different configurations...

. My next purchase: an L2D body!:thumbsup: