... /720 SIMPLE HEAD ARE AVAILABLE. Technical parametersLamp model ACM-W720/720 ACM-W520/520Illumination (Lux) 120000 80000Colour temperature (K) 4200±300 4200 ... lifespan Above 1000 hours Above 1000 hoursOther models: ACMW720/520, ACM-W520/520,ACM-W620/620, ACM-W720,ACM-W520.. Two head Operating Lamps ...