It seems about the same to me, but all of the Streamlight bulbs seem a little on the yellow side as compared to Surefires. When used without comparison, it's not noticeable. I'm presently using a pill that I threw together, with CM's help, that consists of a modified E2e bulb holder that now sports a bi pin bulb socket. I'm using the Stinger bulb in my E2e with a Pila 168S li-ion rechargeable batt. The modded E2e serves as an alternate EDC with my E1e/modded KL1 package. I use it when I anticipate being in a situation requiring something really bright with throw. This combo still out performs all of my really pocketable LED lights.