Set includes Zefal HF-635 Doublevision headlight and Zefal XF Supervision tail light.

Doublevision headlight features:

• Two lights in one, with LED and Halogen bulbs
• Steady-burning halogen light and LED with steady-burning or flashing option
• Locking Quick Release mounts
• Warning light warns of low battery
• Locking quick release mount
• Rubber pad protects your handlebars from scratches
• 10 degree rotation to the left and right for a total of 20 degrees rotation
• Compact size: 5" x 2.5" x 1.5"
• Requires 2 AA batteries (not included)

Supervision Tail Light features:

• 5 super bright LEDs
• Fits seatpost or seatstays from 0.75" to 1.25"
• Ball and socket adjustment for best lighting position
• Large view angle
• Rain proof
• Requires 2 AA batteries (not included)
• Multiple functions:
• Basic Mode: All LEDs are illuminated (battery life up to 80 hours)
• Alert Mode: All LEDs flash (battery life up to 200 hours)
• Energy Saver Mode: 1 of 3 or 2 of 5 LEDs flash randomly  (battery life up to 400 hours)
• Automatic Super Signal Mode: LEDs flash in the dark, but are steady when illuminated by car headlights (battery life up to 200 hours)