I considered one of those pannier mounted too lol. Decided waterproofing would be a nightmare, and the feckoff bright red 1800LM would be more distracting to texting drivers - it might have that effect.1240 Patterns Laser LED RGB Projector Stage Light DJ Disco Party KTV Club Lights | eBay
Upgraded Visual Effect: Updating version for RGB color + background design. Providing you with an unforgettable experience of disco lights show! Just enjoy the colorful night! ● Light source: Red and green laser + LED.www.ebay.co.uk
see what that looks like.