What is the difference between lamp-based and LED moving lights?

Lamp-based moving lights use a traditional discharge lamp (like an MSR or HTI bulb) as their light source. They produce excellent output and beam quality, but the lamp has a finite lifespan (typically 750-2,000 hours), generates significant heat, requires warm-up and cool-down time, and draws more power. Fixtures like the Vari-Lite VL3600 LT Profile deliver 50,000+ lumens with a lamp as the light source.

LED moving lights use LED arrays as their source. They turn on and off instantly, run cooler, consume less power, have much longer source life (often 20,000+ hours), and offer smoother dimming curves. LED technology has matured to the point where LED fixtures now match or exceed lamp-based fixtures in output and color quality for most applications. Fixtures like the Elation Proteus Maximus deliver 50,000 lumens from an LED engine in a fully IP65-rated weatherproof body.

The industry has largely transitioned to LED. Most new fixture designs from major manufacturers are LED-only. Lamp-based fixtures are still used when a specific look or legacy rig compatibility is required, but LED is now the standard for new deployments.