Yet again Denali delivers top quality. These lights have everything in the kit to install them, super easy to install. Reason I got these was for more visibility from behind the bike, all my mates who I ride with have said how bright they are, even a guy pulled up beside me at the traffic lights in a car and said he could see my lights from a long way back, so super happy with that. For those who don’t know what the lights are, they are a rear riding light with a built in brake light and indicators.