Streamlight TLR-2 C4 LED Tactical Light with Laser Streamlight TLR-2 C4 LED Tactical Ligth with Laser and Weapons Mount The same great features of the TLR-1 with an integrated laser sight for accurate aiming. Now with C4 LED Technology. 3 Watt Luxeon LED impervious to shock. Will not break or burn out! Extremely durable anodized aluminum housing. Delivers up to 135 lumens (LED); 650-660 nm laser. Up to 2.5 hrs continuous run time (Laser/LED simultaneously).