Check the listing for details. StewMac Guitar Internal Inspection Light with USB Charger and Cable. Condition: New. Listed at 42.69 USD. Get the light you need for a flawless repairThis full featured 12" light easily fits through an acoustic guitar soundhole and its adjustable bulbs give you the perfect amount of light for any inspection or repair. Make inspections easier Three light settings Dimmable No damaging heat Advanced shape for guitar workIts flat back easily spans braces and stays level. The domed lights evenly illuminate the entire guitar, not just one small section. It's extremely lightweight and won't emit excess heat inside your guitar. Adjustable lights for the perfect view40 LEDs with three settings provide bright white, warm amber, and both together. The lights have adjustable brightness to eliminate accidentally blinding yourself while working! The attached 5-foot cord will reach into any instrument with room to spare. It's powered by standard USB; we recommend our 9-foot extension cable for plenty of room to maneuver, and the dual power supply that can run multiple lights. Dimensions: 12" x 3/4" x 5/8" (305mm x 19mm x 16mm) 40 super bright LEDS USB-powered (must be plugged into charger) 5-foot (1.5m) built in cord Optional magnetic mounting hardware Guitar Internal Inspection Light Set - Includes Guitar Internal Inspection Light, Dual USB Wall Charger, and USB 2.0 A-Male to A-Female cable only 9-foot Extension Cable.