This is the Dual Xenon Strobe Light System from Ram. FEATURES: U-shaped strobe flash tubes with Futaba J style connectors for easy replacement (nothing to solder) Adjustable flash rate INCLUDES: Two strobe flash tubes One control box One 9V connector One ON/OFF switch REQUIRES: One 9V battery FUGP4601 Double-sided servo tape for mounting GPMQ4442 SPECS: Strobes Control Box Length: 35mm 42mm Width: 15mm 45mm Height: 18mm Diameter: 5.5mm COMMENTS: Replacement strobe flash tubes must be purchased through RAM tjt 110403 ir/jxs updated tjt 081004