![]() ![]() The output levels are so opposite with a 9lm Low and a 1000lm+ High, these might seem too at odds to work well, but they do. For me the ‘Ultra’ version is absolutely the one to have. Though by no means a lesser light, there is perhaps slightly less to say about the Defender E2D, so I shall start with that. The Defender E2D Ultra and Stiletto in use Performance is solid from the Stiletto and output is more than good enough for EDC 45 minutes of 500lm-plus output is impressive. For ‘duty’ use you will still want to use CR123s, but the RCR123s give great guilt-free lumens. However skip onto the full runtime and you can see the RCR123 cells run out after thirty minutes, but the CR123s go on a lot longer and with much more warning they are getting low. In the runtime graphs, first check the start of the run and you can see how the RCR123 cells are capable of keeping that peak output from the Defender until the programmed slope-off of the output after 60s. ![]() ![]() This is possibly due to power supply pulsing with the different voltage of the RCR123 cells which were able to produce a higher maximum output than on CR123. It only appeared that the Defender’s High beam when using the RCR123 cells showed any PWM. PWM frequencies are recorded by an oscilloscope, and in some cases are clear and in others are more like superimposed noise. The results can be used to compare outputs in this review and others I have published. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. The sensor registers visible light only (so Infra-Red and Ultra-Violet will not be measured). To measure actual output, I built an integrating sphere. The Stiletto however lacks the hot-spot and provides nicely even lighting. This is even more noticeable in the outdoor beam-shots. You will notice in the direct comparison that the Defender’s beam is actually wider than the Stiletto’s. The Stiletto has a Surefire ‘MaxVision beam’ I’ve come across a few variations of this, but in essence they have all been quite wide and evenly lit to give you ease of vision at close to mid ranges. The spill beam is surprisingly wide, so much so you can see the bezel crenellation shaping in the outer edge of the beam. Starting with the Defender and it’s mix of smooth hot-spot and spill beam giving a very useful all-round capability. The character of each beam is really very different. I don’t actually have a ‘white wall’ in the house to use for this, and my wife won’t have one! The woodwork (stairs and skirting) are painted Farrow & Ball “Off-White”, and the walls are a light sandy colour called ‘String’ again by Farrow & Ball. All beamshots are taken using daylight white balance. The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. Unless properly calibrated, the screen itself will change the perceived tint. Please be careful not to judge tint based on images you see on a computer screen. ![]()
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