A typical 9 volt cell will power a DEK for well over 160 hours. It is normal for the light to be quite bright when first plugged in, and get progressively dimmer as the battery weakens.
- The DEK’s use an LED (Light Emitting Diode) to turn the battery’s energy into visible light. Under normal conditions, it will last about 50,000 hours, or over five and a half years of continuous operation. Naturally, you will go through quite a few batteries in that time.
or at the Contemporary Art Museum Houston