I play every week in the late fall and winter (I live in San Diego) and we have tried everything from glow discs, glow sticks, Blackjax light up discs, and finally we have all settled on LED's. I buy an LED and a battery from Radioshack. Put the two prongs on +/- side of the battery and tape it on to the disc. Duct or electrical tape works well. Then just remove it after the round. I have found that this small light impacts the flight of the disc far less than one of the light pods or a glow stick plus they are extremely bright. You can use a light Pod or a Flashlight to mark the holes, but if you are playing on your home course you should know where the baskets and trees are unless you have rotating baskets like we do. Playing during a full moon is another great time.
Some pros are; no lines at tee boxes, free rein of the course, and excuses for poor scores
Some cons; You use one disc for most of your throws, bums may throw your discs back after a good drive or steal them, loss of discs, injury from stepping in a hole, Getting shot at with air soft guns and being propositioned for anonymous anal sex (Only play in groups of three or more to avoid propositions and confusion)
Probably too much information about the weirdness of Morley field, but night golf is a lot of fun and if you live in a more temperate area, a great option to play on week nights.
