Minimalistic light bar for 5mm LEDs

I needed some holder/bars to mount 5mm LEDs to.
So I just made them. Short version is 150mm long, gives a nice spot-light.
Long version is 250mm and distributes the light some more.

Fits 5mm LEDs without the need to glue them in.

I use white LEDs (3.4Vf) and operate them at 12V, solder 3 together and use a 100 Ohm resistor. There is enough room inside the bar to hide the wiring.
Mount it using hotglue or sth like that.