This headlight system incorporate 2 high power super bright LED's and reflectors. They are very efficient and only consume 0.5A. The lights can be turned on and off via a spare channel on your receiver. These lights are suitable for RC aircraft， car or boat.Features:Power is supplied via the JST-XH balance connector of a 2S LiPo batteryCan be turned on and off via a spare channel on your receiver / transmitterControl voltage input from receiverHigh power super bright LED with aluminum heat sinkSpecifications:Brand name: G.T.POWERVoltage input from receiver: 5V DC MaxJST-XH balance connector input voltage range: 6.5V-8.4V DCLED Housing diameter: 22mmLED Housing depth: 21mmJST-XH (2S) wire length: 180mmControl/receiver wire length: 300mmControl to LED wire length: 200mmPackage Information:Package size: 9 * 6.7 * 3cm / 3.6 * 2.6 * 1.2inPackage weight: 59g / 2.1ozBrand gift box packagePackage List:1 * G.T.POWER High Power Headlight System Set1 * Accessory parcel1 * Instruction manual