That's wierd as stock the lamp is red only at night, your posted screen shows blue lamps, I assume you have changed the particles for this? Does yours have Dual lights?
Could you show me where to make the changes there please (assuming this will give dual color lights).
Thanks.
For those who use a blue
night light will find that the NavMap still uses a Red filter, here is a blue one:

Can download here:
http://files.filefront.com/SH3+Blue+.../fileinfo.html
Cheers & thanks again DD!