The Halo features a built-in LED powered by a 1000mAh rechargeable battery, no permanent wiring required. A single-touch control on the case lets you turn the light on or off and cycle through brightness levels.
With the LED running continuously, the battery lasts 2.5 – 3 hours per charge; with normal daily use (turning it off when not in display), a single charge can last up to 7 – 10 days. The Halo can also be used while plugged in for permanent display.