Nite Hawk Eco Headlamp

 
 
3½ Stars
Good/Very Good
         

Light Type: Luxeon I LED
Light Class: Outdoor / Rough Use / Etc.

Short Description:

The Nite-Hawk Eco is a nylon polymer headlamp which utilizes a Luxeon I LED and collimator optics as a light source and is switchable between two lighting levels.

The headlamp is a two-piece design with the light pod in the front, battery pack in the back, both connected via an extendable cable and an adjustable 3-point elastic strap head frame. The light pod is adjustable both vertically and horizontally. The switch is located on the top of the light pod. Switching follows an "on high (100%), off, on low (10%), off" pattern.

The battery pack in the back holds 4 AA cell batteries and is water resistant. The connecting cable between the light pod and the battery pack has a coiled portion for expansion and is attached to the straps with two clips. The elastic strap head frame is fully adjustable and easily removable.

Runtimes are advertised at 15 hours for high mode and 96 hours for low mode. No regulator circuit is present, so output diminishes over time.

Rear view
Bezel

Front and angle view

Beam Profile

Detailed Information:

Nite Hawk is a well established bicycle lighting company which is now branching out into the headlamp market. For this new venture they have decided upon the Luxeon I LED platform for their light source, powered by 4 AA alkaline batteries. Since they already have experience in the illumination industry with building heavy-duty lights designed to take a beating on bicycle handlebars, we would expect that this tangent to their typical offerings should provide output and durability commensurate with what is promised, but the platform may need some tweaking. Indeed, this is precisely the situation.

The body itself is a nylon polymer which is extremely tough. The light pod in the front of the headlamp can take a serious beating and is permanently sealed to prevent the entry of the elements. On top of the pod is a red, rubber capped switch for activating the two modes of light provided by the system. The entire pod is adjustable on both the vertical and horizontal axis. Vertical adjustment uses a resisted hinge between the pod and the padded forehead plate which ratchets into place to prevent unanticipated misalignments. The resistance is very significant and requires two hands to adjust. The horizontal adjustment comes initially locked in place. Loosening a screw on the bottom allows the light pod to swivel from side to side.

At the rear of the headlamp you will find the battery pack. This pack holds 4 AA alkaline cells and is attached to the light pod in the front via the 3 point elastic headband framework and a single cable. The cable has a large coiled portion to allow for adjustment and the cable itself is quite thick which should enhance its durability. Reinforcements exist at both ends of the cable where it attaches to the pod and the battery pack. Two clips attach the cable to the headband strap on the right side of the user.

The battery pack itself requires some additional attention since changing the batteries can be a bit problematic. There are 3 molded clips around the battery box which hold the two pieces of the clamshell design together. The "lid", which does not contain the battery contacts, rests against the user's head. The three clips are attached to the "body" of the pack and protrude beyond the surface of the "lid" allowing for the potential that, with some users, the clips could contact the scalp. This is especially true during a fall which would impact the rear of the user's head. This provides for a potential laceration hazard, however unlikely.

Another characteristic which attracted my attention was that the headband straps were attached to the "lid", while the strap wrapped around the back of the "body" of the battery box. This means that the straps need to be either loosened or removed every time the batteries need to be changed out. I found this to be very inconvenient and results in a tangle of straps and components. Not an enjoyable prospect when trying to change out the batteries on a dark, wet trail.

This same awkward design pattern is found in several other companies' headlamps reviewed here. A quick and dirty solution to this is to remove and re-route the headband strap around the other side of the battery box, against the user's head. This makes the battery pack much easier to access, but slightly less comfortable. When returning the battery pack to its original configuration, the user needs to make sure they snap the clasps back in place as indicated in the instructions, re-tighten the strap around the battery pack, and possibly readjust the straps.

For safety purposes, polarity protection is built into the design of the pack. If any of the batteries are inserted incorrectly the entire system will not work.

There is no seal between the halves of the battery pack and water resistance is afforded by the tightness of the assembly and the tongue-in-groove molded design around the inner edge of the pack.

The light pod contains, as mentioned above, a Luxeon I LED for illumination. No regulator circuit is present, but there is a system which allows the user to switch between full power output and 10% output by simply clicking the switch in series. The headlamp turns off between the two modes, so the system appears to be purely mechanical in nature and is likely to use a simple resistor to create the drop in output.

Output is very good. The light beam is collimated by total internal reflection lens which is permanently focused. The result is a very smooth and bright spot with a good surround. There is very little spillbeam beyond the area covered by the main spot. As is expected with Luxeon LEDs, the light produced is a good color temperature, close to sunlight in composition.

From a wearability standpoint, the straps are fully adjustable so the headlamp should fit most heads out there. The straps can be relatively easily removed from their attachment points as a result of slots molded in the strap apertures. The cable clips did rub slightly on my head in use and the entire system is noticeably heavy. This is, I'm sure, the result of the heavy duty design of the entire unit.

What I Liked: Water resistant (not dunkable), Tough/impact resistant, Good battery life, Bright, Two levels of output.

What I Didn't Like: Awkward battery change process, A bit heavy for long periods of wear, Battery box clasps protrude toward the user's scalp, Vertical adjustment is very firm and requires 2 hands.

Other Things I Noticed: Switch is fairly firm, but this is not a bad thing at all.

Conclusions: A tough headlamp. Some of the solid design characteristics definitely elude to the bicycle-oriented history of the Nite Hawk design. Overall a good step forward into a new product line for the company. I really think the whole battery box design needs to be revisited to improve convenience for the user. Very good output and solid design of the rest of the headlamp helps overcome the inconvenience encountered during battery changes, but those narrow clips that protrude toward the user's scalp do concern me even though it is probably unlikely that they would ever contact an average person's head except as the result of a dramatic impact.


Quick Facts Table:

Review Date ............................. January 2005
Case Material ........................... Nylon polymer
Case Features .......................... Adjustable on both vertical and horizontal axis
Case Access Type .................... Clamshell battery box, sealed bezel
Switch Type ............................. Mechanical click, 2 levels of output.
Reflector Type ......................... None
Lens Type ................................

Total internal reflection collimator

Bulb Type ................................. Luxeon I LED
Beam Type ............................... Spot
Beam Characteristics ............... Bright center and surround, very little spillbeam
Throw (Lux) at 1m (click for description) high ~ 1400 at beam center. (37.42 Comparison Chart equivalent)
low ~ 250 at beam center. (15.81 Comparison Chart equivalent)
Overall Output (click for description) high ~ 1680 (16.80 Comparison Chart equivalent)
low ~ 290 (2.90 Comparison Chart equivalent)
Battery / Power Type................ 4 x AA alkaline cells
Battery Life (advertised) ........... high: 15 hrs., low: 96 hrs.
Environmental Protection ......... Sealed bezel, Battery box tight fit only
Weight (oz.) with batteries ....... 10.7 oz.
Special Items of Note ...............  
Warranty .................................. Unknown
Retail Cost ................................ 79.95 US$ at time of review from Nite-Hawk.com
 

 

 
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