Halco Lighting Technologies MH50/U/MED/PS MR16/5RGB/FL/LED 108228 50W MH ED17 MED PS PROLUME UN2911,Halco Lighting Technologies,MH50/U/MED/PS" /> Up-to 20, 000 hours average rated life High efficacy, up to 110 lumens per watt Municipal Lighting, retail, security lights, street Lighting