Ok, so I got my Hong Kong special UltraFire WF-505B in today... Less than spectacular packaging. It was literally just cheaply wrapped and putin a small envelope. But hey, I paid less than 17 bux for it so ya know -- you get what you pay for.... So let's compare. I was kinda shocked how much smaller the UltraFire was. The walmart (~19 bux LED) felt more durable and more bulky. Mind you, as a paramedic I've used the walmart light everywhere -- on MVAs, stubbling around meth houses, looking for sharps, dropped it out of the ambulance when I pulled the stretcher, sropped it under my bed when I'm trying to find my bunk.... never had a problem. Size comparision to a G19 mag and .223 UltraFire. It is not on in the second pic, that's flash from the camera. Old faithful. It's not on in the second pic, that's the flash. Also a pic of it pain in the ass AAA assembly (good luck changing batteries in the dark). C123 2 pack $10 AAA 4 pack $3.25 Walmart light takes 3 AAAs and the UltraFire 2 C123s Now, I'm going to load up each light with fresh batteries and turn out the lights in the house. Compare. And then do the same in the nearby treeline. Lots of streetlights outside but it'll do.