☆ System efficacy up to 130 lm/W ☆ Extended system service lifetime up to 50,000 hrs (L80/B50) at ambient temperature 35°C ☆ Outstanding colour rendering performance (Ra75/80/85/90), stable colour constancy ☆ Light control with lens and various beam angle reflector,glare protection ☆ Simple single-point chain-suspended or bracket-ceiling mounted in groups ☆ Instant full light on, and instant restart with 100% full luminous flux ☆ Optional with 0-10V dimming and dali dimming ☆ DIN13021 design standard ☆ Beam angle 45/90/120° available ☆ Housing of finish color: jet black RAL9005 or aluminum grey RAL9007