LED replacements for all lamps used in the unit LEDs require NO modification for installation No special tools needed Lifetime Warranty on all LEDs This is a complete lamp kit for the Marantz 140 Stereo Receiver. It is made up of all LEDs (Cool Blue color fuse lamps) and includes all the lamps (LEDS) needed to completely re-lamp your receiver. The LEDs are custom made by Vintage Electronics to work without any modifications to the unit. They connect just like the original incandescent lamps