The Advanced Lighting Systems (ALS) AUD501H Audio Light features a high efficiency COB LED light with a built-in Bluetooth speaker. The AUD501H offers five levels of brightness: 1,000 lm, 2,000 lm, 3,000 lm, 4,000 lm and 5,000 lm, and a run-time of up to 7.5 hours. The light's speaker function is designed to pair easily to the user's device, and brightness can be controlled using the ALS mobile app. Lights will flash as a low power warning prior to the battery running out. This light features a high quality aluminum housing and is impact resistant and IP67 dust and water resistant.