Cateye UNO Headlight & TL-LD610 Taillight Combo Set White. Combines the compact EL010 head light, with the excellent visibility of the LD610 tail light EL010 uses 1 LED and has 2 modes that can last up to 15 hours flashing LD610 uses 5 LEDs and has 4 modes that can last up to 60 hours flashing