2 red, 2 white bulbs.  Tube High Output CCFL Fluorescent w/ Built-in Dimmer

• Low Power Very High output, Built-in Dimmer, 9-24VDC, Environmentally friendly RoHS compliant, long life bulbs 30,000 hours.

• Digitally dimmable with memory
• Nightlight feature uses virtually no power
• Runs cool, virtually no heat
• Energy efficient
• Environmentally friendly
• Long life – 30,000 hrs vs. 6,000 hrs
• Can also be dimmed with wall switch
• 136mm × 355mm × 24 mm
• 12VDC @ 1.44 A (16 Watt)