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Reviews > Lighting > Headlamps - LED > Princeton Tec Byte 2011 > Test Report by Andrew HenrichsPrinceton Tec Byte Headlamp 2011 Test Series by Andy Henrichs November 19, 2011 Initial Report - 7-11-11
Product Description This Princeton Tec Byte Headlamp is a slightly redesigned lightweight headlamp designed for camping, climbing, or running. It features a single Maxbright LED and a single Ultrabright Red LED. The Maxbright LED emits a standard white light and features a high and low setting. The Byte runs on two AAA batteries (alkaline or lithium), which are included. The Byte is initially packaged in three "pieces." These are the batteries, the headlamp body, and the adjustable elastic headband. The headband is black with small red squares and features the Princeton Tec logo in white, as well as the letters "PTEC," also in white. The headband adjusts from approximately 13 in (33 cm) to 24 in (61 cm) in circumference. The headband attaches to the headlamp body quite easily by slotting the band thorough small openings on each end of the headlamp body. The body itself is black and is approximately 2.25 in (5.7 cm) by 1.5 in (3.8 cm) at the widest points. There is a slightly curved section (where the headband attaches) connected to one end of the body at a pivot point. This pivot point allows approximately 45 degrees of upward rotation and approximately 80 degrees of downward rotation. The other end of the body contains the battery compartment door. This light gray door secures with a simple "tab in the hole" mechanism. It is incredibly easy to open and seems to secure quite well. The top of the headlamp body is home to a light gray power button. The first push turns on the Ultrabright Red LED, the second turns on the low setting of the Maxbright LED, the third turns on the high setting of the Maxbright LED, and the fourth turns the headlamp off. There appears to be a discrepancy in regards to the burn time of the 2011 Byte. According to the packaging, the batteries will last for 80 hours on the high Maxbright LED setting, 96 hours on the low Maxbright LED setting, and 146 hours on the Ultrabright Red LED setting. The website, however, lists 2 hours burn for the high Maxbright LED. The other two burn times were the same between the website and packaging. Due to my experience with the 2010 version of this headlamp, I believe the website has the correct information. I will test this burn time with fresh batteries to see what I actually experience. The packaging also states that fresh batteries will illuminate 98 ft (30 m) on the high Maxbright LED setting, (49 ft) 15 m on the low Maxbright LED setting, and 20 ft (6 m) on the Ultrabright Red LED setting.
Initial Impressions While simple, the 2011 Princeton Tec Byte appears to be a nice compact LED headlamp. It's very easy to adjust the headband to fit my head, and it appears there is enough adjustment available to fit over a climbing helmet. During my test of the previous incarnation of this headlamp, I found that I used the red LED occasionally, but not excessively. I'll see if use of the red LED grows on me any more during this test. When using it around the house (without having first established my night vision), the red light allowed me to make out objects just out of arms reach. Both of the Maxbright LED settings provided much more illumination, as one would expect. The pivot point of the Byte seems to pivot more easily than the 2010 model, and it moves to each incremental pivot position with a click. I feel like this may be a more user-friendly pivot mechanism than the previous model. One thing I did notice is that the body cannot rotate far enough to cover the power button. This theoretically could allow the Byte to become accidentally switched on in my pack, although the force necessary to actually depress the button to turn it on makes me think this won't be an issue. The battery cover door closes very securely. Field Conditions
Field Observations Not all of my experiences with the Byte have been positive, however. During my last outing (the car camping trip near the Lost Creek Wilderness). I finally decided to dig out the Byte once the sun had set and darkness was upon me. I dug it out of my pack, pressed the power button, and nothing happened. After a few choice words, I scavenged two AAA batteries from a spare headlamp and replaced the dead ones in the Byte. It turned on instantly and seemed to work just fine. I suppose I should take the blame for not checking the batteries before I left on the trip, but I didn't think that only two hours and fifteen minutes of use (primarily on the low setting) out of the included batteries would completely drain them. This is a far cry from the 96 hours of use that the Princeton Tec website claims. I will be sure to fully charge a set of rechargeable batteries before my next outing with the Byte. Likes (so far): Dislikes (so far): Field Conditions
Field Observations and Summary I was also able to test some of the battery claims for the Byte. For the sake of time, I only tested the battery life on the high Maxbright LED setting. Using a set of fully-charged rechargeable batteries, I turned the Byte on high and let it burn. After 2.5 hours, I found that the intensity had decreased. After cycling through the settings, the high setting was outputting the exact same brightness as the low setting. I was pleased with this, given the burn times provided by Princeton Tec. I continued to let the Byte run on high for 45 more minutes to see if the same "weak strobe" failure that I experienced with the previous incarnation of this headlamp occurred with this version. To my delight, the Byte never began to strobe. Instead, it just continued to fade until there was very little light output. In my view, this is how a headlamp should indicate low battery life. Fading illumination is a gradual warning, as opposed to switching to a faint strobe or simply turning off. All in all, I feel that this 2011 incarnation of the Princeton Tec Byte is a decent little headlamp. It is lightweight, easy to operate, and comfortable to wear. Despite my most recent experiences, I still have some lingering doubts about its reliability. These are primarily based on my experience with the battery failure I experienced during the Field Report. I will contine to keep the Byte around for use as a spare headlamp, but I don't see myself using it as my main backpacking headlamp. When I do use it, I will probably limit it to shorter backpacking trips and will always make sure I have extra batteries. Thank you to Princeton Tec and BackpackGearTest.org for the opportunity to test this headlamp. Read more reviews of Princeton Tec gear Read more gear reviews by Andrew Henrichs Reviews > Lighting > Headlamps - LED > Princeton Tec Byte 2011 > Test Report by Andrew Henrichs |