Applications & Installations: Easy install, not skill , put the brick LEDs inside your brick or model , and then switch on , and finish LED ""Six in One"" Down Lights 6 brick LED with USB Powered, with Remote controller Fantastic item to light up your Brick sets. Just need to connect with any 5V USB battery or 5V power bank or computer USB Timer function When you press the "Timer" in controller that you can let the LEDs work 6 hours. and then Turn off 18 hours (So, please press the "Timer"at nightfall) So, it can let your brick or Castle or any model light up at night only & rest at daytime, one day later ,at nightfall, the light module with light up automaticallyPlease be noted that the Timmer function is a Fix function, just can make 6 hour on, and other hour off) (can not adjust light up hours) Information about the USB brick light module 1. Super bright LEDs(brightness increase 47%) 2. Brick light from 4 upgrade to 6 bricks 3, Funtional remote 4,. super thin wire(AWG 33 wire, Diameter is arround 0.2-0.3mm) 5. each wire is 20cm(8in) length Function about the Remote control 7 flashing mode you can select Dimmer Function Adjust Brightness as you like Package included: 3 sets of LED ""Six in One"" Down Lights LED), 3x6 USB Powered 3 pcs Remote controller (5V USB power supply not included)