With Aluminum Alloy Construction, this strobe light is solid and durable, and also convenient to use in studio shooting. Its light intensity is quite strong enough with high flash energy 400WS and guide number GN60. It can work as main light, back light or hair light, and form different kinds of layout lighting. It can be handheld or mounted on a light stand, what's more, it comes with an umbrella hole which can mount the soft umbrella. Specifications: Flash Energy: 400WS Guide Number: GN60 Flash Energy Adjustment: 1.0-6.0 Digital Dimming Modeling Lamp Adjustment: Prop, Full, Off Recharging Time(s): 0.3-1.5 Recharging Reminder: Sound, LED Indication Sync Distance: 10m Color Temperature: 5600K +/- 200K Sync Voltage: DC 5V Flash Duration(s): 1/2400S Trigger Mode: Photosensor, Flash Trigger, Test Button Trigger EU PLUG :Work Voltage (US): 220 V/50 60 Hz Cooling System: Fan Fuse: 10A Size: 14.2 x 5.5 x 9.6 inches/36 x 14 x 24.5 centimeters Weight: 82.1 oz/2.33 kg 1 x 400W Strobe Flash Light 1 x 150W Modeling Lamp 1 xEU/US Plug Power Cord 1 x Sync Cord