Product description: Bright LED light output Halo style bulb
Not only they are the brightest LED on the market, but also they
require the least battery power. A wide variety of colors to choose
from: white, blue etc. The wiring is 18" long. It works great with the
RC Light Controller. colors:blue+white/red+white/red+yellow/purple+yellow/green+white 4.2v-6v input 2 lighting options Lighting switch Pre-Wired
SPECS: - Outside Light diameter is 22mm - Inside light diameter is 10mm - length of the wire is 50cm