i've got mine set on the brightest tail light setting and when the brake is on, i have it set on the brightest setting with the quick flashing. it sure does keep the cars off my rear fender at stoplights, especially at night. awesome investment for safety, and it's got the cool factor too. i'm very impressed. yes julesdain, it is from the company bright ass lights. and that's where the b.a.l. comes from. i got mine at pigtrail harley for 200 bucks, and now regular taillights look boring.