Unfortunately, Mag-Lite - for whatever reason - some time ago ceased production of 4D LED version (ST4D016) (2011/12?). Since such a bundle (eg S4D016 + LiteXpress Upgrade LED module) are the best and probably only chance at a very affordable price in order to regain as the 4D-classic with LED. Although this Mag-Lite is not exactly a lightweight with 4 D batteries, I prefer my other flashlights still regularly repeatedly before.
FYI: When it is cold here the Trailite TL-2004NSD protects neoprene handle with clip for D-Cell Flashlight quite well for the car I use the Mag-Lite ASXD026E holder for D-cell flashlights. These two products I can recommend with a clear conscience.
From the religious discussion whether a Mag-Lite in terms of luminosity a LiteXpress or two brother / LED Lenser now can hold a candle, or not, I now consider myself sometimes deliberately out ... :-)
The Mag-Lite 4D LED is for this price certainly a very solid and very bright LED lamp, which I can only recommend.