Philips 100W 12V T4 GY6.35 Capsule Bulb For HF3470/HF3471 Wake Up Light 100w 12v GY6.35 Capsule Halogen Bulb Average lifetime approx 4000 hrs Instant full light Dimmable, 3000K, CRP140 Also works with: HF3470, HF3471 Philips Wake Up Lights