The DS9 episode is “Hard Time.” Unless Insurrection had one too, that episode and First Contact were the only appearances of a boomerang phaser with a light up meter.
I don’t know of any boomerang phasers with yellow LEDs - should all be with 8 green and 8 red AFAIK. Same goes for the Nemesis dolphin phaser. As mentioned above the mix of the red and green LEDs illuminated together creates a yellow/orange effect.
At least one dustbuster had a green/red 10-segment bar graph. Some were all green. Not sure on the hero cricket phasers but I believe most (if not all) had all green 10-segment bar graphs.
Like Oddball said I’m pretty sure the on-screen hero cobra phaser LEDs were all green for the short time they had light up power meters.
Side note: the “green” used on all of the above were older style green LEDs, which had a very yellow-green cast to their emitted color. Most of the ones you find now have a less yellow/more blue-green color which is unfortunately not the best for these phasers (and tricorders). I’ve heard from multiple people how hard/impossible it is to find any more surface mount that emit the right shade of green.