This may be old news but I haven't seen it mentioned here. If you own an older Givi top box (such as an E52), the light kit consists of analog lights which of course burn out over time. Givi will replace the light block for $18.00 and it just plugs in but the lights are now red LED bulbs wired to a circuit board and the difference in output is significant. If you do run into a problem of having one side going out, in order for the lights to look right you have to replace both blocks for $18 X 2 = $36. The other alternative is to go to Admore lighting.com and take a look at their excellent LED upgrade kits for the Givi boxes.