Five embodiments of security safe light modules are disclosed which provide dedicated, low-power light modules for illuminating, on demand, the combination lock of security safes and, particularly, the combination lock of a security safe designed to store firearms. Several embodiments are designed to magnetically or adhesively adhere to the outer surface of the steel access door of a safe immediately above the combination lock dial or keypad, while others are designed to be permanently sandwiched between the outer surface of the access door and the combination lock which is secured to the door's outer surface with screws accessible from the inside of the safe. All embodiments include a housing preferably made of polymeric structural resin, a 3-volt lithium coin cell, a light emitting diode, and a switch. Certain embodiments provide a timed circuit which automatically shuts off power to the LED.