Forwards Only Marine ESC Sonik4 Forwards only Marine ESC. Motors and batteries have moved on.................so have we! The Sonik4 incorporates high power Gen Xi-FET technology with a new heavy duty, light weight heatsink which provides 50% more effective cooling! The new intelligent power delivery system (PDS) minimises wasted power, maximises traction and reduces motor wear and heat.With improved protection, the Sonik4 range offers something for all levels of the hobby! 100% Waterproof 15A motor limit 6.0V to 12.0V Operating voltage (5 to 10 cells) 1KHz drive frequency 0.025V drop at 10A Maximum current rating, 15A 1.2A BEC Dimensions : L23.0mm x W34.0mm x H15mm Weight : 35g Light weight forwards only ESC ideal for speed runs! Code: Sonik4 Marine FW