Light Bars6" Dual Row Light Bar - DRC6 - 36W12" Dual Row Light Bar - DRC12 - 72W20" Dual Row Light Bar - DRC20 - 120W30" Dual Row Light Bar - DRC30 - 180W40" Dual Row Light Bar - DRC40 - 240W50" Dual Row Light Bar - DRC50 - 288W54" Curved Dual Row Light Bar - DRCX54