UCL lens is very important. You're 100% correct.
Malkoff drop in is the best. You're right on target there too!
It is worth it... save up if necessary!
Some of us here tried to get a sticky put up with this basic info since it is asked daily. Maybe one day...
I just bought a TLE-6EXB TerraLUX MiniStar5 for my 2D Mag. Huge improvement over the standard incandecent bulb. Its also brighter than my 3D Magled. Just the fix I wanted for my glove compartment light.
2. Kaidomain Q5: quality not as good as Malkoff, but way brighter than the Terralux, plus heatsinking is good. Cheaper than Terralux. For an extra $17, you get an UCL and OP aluminum reflector. Pretty good deal.
3. Terralux: Horrible heatsinking, definitely not as bright as the above two. Really wouldn't recommend it unless you had the above 2 already and had money to burn.
PS - If anyones the terralux for the 2-3D, PM me, I have one for sale