I've got one like this and have done the red cellophane trick - works well. If it's exactly the same as mine it has a semi annoying "feature". It has three levels of increasing brightness, then a flashing mode, then back to dark. Can be a little annoying if you only want to flick the light on for a second or two.
Yeah, I've already got one from Jaycar that does that. 4,8, or 12 LEDs for illumination in succession. Wasn't looking for a substitute, but I find the headlights so invaluable that I thought that can make great stocking fillers for Christmas
