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По умолчанию Review: Coast HP7R Rechargeable (Li-ion pack, 4x AAA)

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Author's Statement for Transparency and Disclosure
The test sample/s featured in this article have been provided for technical testing and review by the manufacturer. Test samples are retained by the reviewer following publication of the completed review for the purposes of long term testing and product comparisons.

All output figures and test results published in this review are the sole work of the reviewer, and are carried out independently and without bias. Test results are reported as found, with no embellishments or alteration. Though best endeavours are made to maintain the accuracy of test equipment, the accuracy of these results is not guaranteed and is subject to the test equipment functioning correctly.
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Coast have taken the HP7 and updated it with their 'Flex Charge Dual Power system' to create the HP7R. Included with this light are AC and DC chargers, for the rechargeable battery packs, as well as an AAA battery pack to give the user plenty of options. Without any extra parts, the HP7R's rechargeable battery packs can be recharged in the HP7R or outside using a micro-USB connection. Add to this a zoom beam and a comprehensive kit of accessories and the HP7R looks like an attractive package.

*For anyone wondering about the similarity between Coast lights and another well-known zoom light manufacturer, this is due to Coast originally having exclusive distribution rights for those products in the US, but now manufacture a line of lights under their own patents. What we are looking at here is 100% Coast manufactured.
(* based on recollection of a conversation at SHOT show)





Taking a more detailed look:

The complete HP7R kit is presented in a sturdy box.



With the lid off, you see the HP7R along with its two rechargeable li-ion battery packs, along with a 4x AAA battery carrier already loaded with alkaline cells. But there is more!




Removing the insert in the box you find the rest of the kit. This includes, the HP7R, two li-ion battery packs, one 4x AAA battery pack, USB mains charger, USB 12V charger, USB to micro USB cable, lanyard, holster, belt clip, wall mount and instructions. That is comprehensive!




The holster is a nice quality and made from a slightly padded thick material. A bit like cordura covered neoprene. The fit is snug, so even if the flap is not secured, this is not going to let the light fall out.




In the HP7R, the optic does not have a flat front, instead it has a dome in the middle of a dished optic.




In the flood position of the zoom, you can see the LED.




Moving the head to the spot setting and the LED can no longer be seen.




The switch boot has the Coast 'C' moulded into it.




Then one of the tricks up the HP7R's sleeve (or tail-cap). With a slight twist the tail-cap can then be pulled to reveal a micro USB port that can be used to charge the li-ion battery packs inside the light.




Inside the battery tube, you can see the contacts at the head end of the light.




The tail-cap has three contacts which relate to the charging and switching.




The threads are cleanly cut truncated standard threads.




It is possible t charge the battery packs either inside the HP7R as shown before, but also on their own outside the light, as they have a micro-USB port as well. The charge indicator light shows red when charging and green when fully charged.




Comparing the rechargeable battery pack and the AAA cell holder pack.




Charging the battery pack inside the HP7R.




As well as the holster there is plastic belt clip. This is an incredibly tight fit.





The beam

Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.
The indoor beamshot is intended to give an idea of the beam shape/quality rather than tint. All beamshots are taken using daylight white balance. 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. I don't actually have a 'white wall' in the house to use for this, and the wife won't have one!


Set to the flood beam the HP7R projects an even disc of light.




When zooming to the spot beam, if you stop just before fully zooming the LED comes into focus.




Finishing the zoom to spot and the LED image blurs into the fully focussed spot.




Moving outdoors with the flood beam.




And zooming in for maximum throw.





Modes and User Interface:

There are 3 output modes, High, Strobe and Low.

A forward clicky tail switch allows for momentary operation, but each time it is pressed within 3s it will change modes High -> Strobe -> Low -> High etc.

After being OFF for at least 3s, the HP7R will always come onto High.
Two quick presses, puts the HP7R into Stobe mode.
Three quick presses, puts the HP7R into Low mode



Batteries and output:

Supplied with two proprietary 2400mAh li-ion battery packs and a carrier for 4x AAA.

To measure actual output, I built an integrating sphere. See here for more detail. The sensor registers visible light only (so Infra-Red and Ultra-Violet will not be measured).

Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.

Coast HP7R using supplied li-ion battery packI.S. measured ANSI output LumensPWM frequency or Strobe frequency (Hz)
High Flood2530
High Spot/Zoom2530
Low26454
Strobe1546.8 & 20

Peak Beam intensity measured 34500lx @1m giving a beam range of 371m for the spot zoom and 400lx @1m giving a beam range of 40m for the flood beam.

Despite the forward clicky switch, the connections are not a simple double pole. There is parasitic drain which measures at 33uA and with the 2400mAh rechargeable cell provided will take 8.3 years to deplete it.

Of particular note is that the optics of the HP7R have no loss of output from full flood to spot beam.

On both the li-ion pack and the 4xAAA, the output drops quickly to 150lm after three minutes and down to about 80lm after 10 minutes. The li-ion pack manages a significantly longer run.




Looking in more detail at just the first part of the trace shows more clearly the changes in output.





Troubleshooting

This is a new section I am adding to mention any minor niggles I came across during testing, in case the information helps anyone else.

Nothing has come up during testing.

As per the description of this section, this information is provided in case anyone else finds a similar 'issue' that might be fixed in the same way.



The HP7R in use

Depending on your expectations, the HP7R is either going to be fantastic or a disappointment. To most non-flashaholics, the beam is bright, and the ability to zoom in to a spot beam or zoom out to a flood beam fascinates. If you are only going to invest in one light, you might want to choose the flexibility of a zoom.

To serious flashaholics the HP7R won't deliver as it just doesn't have high enough output, and is not waterproof or resilient enough. But serious flashaholics are not who this light is aimed at (unless it is to be bought by a flashaholic as a gift for a non-flashaholic friend).

With the HP7R you immediately have a complete kit, giving you rechargeable li-ion power which is USB chargeable (and a spare li-ion battery), mains and car chargers, the option to use easily available AAAs as a backup, as well as a holster and belt and wall mount. For the average person the HP7R provides a lot, and this is where its strength is. A jack of all trades light perfectly suitable for most people who have no interest in specialist lights (yet).

Operation is simple with the three modes, and the zoom head is intuitive.

By including 'charge-in-the-light' and 'charge-out-of-the-light' options for the li-ion battery packs, Coast have made it easy to keep the HP7R topped up and ready to use as well as having the spare battery ready to go too.

Having compared the flood and spot output of other zoom lights, there is always a significant loss when changing to spot. The HP7R however manages to eliminate losses and the flood and spot lumen count was exactly the same – very impressive.

With the flood beam being created by the optic, the resultant beam is a disc of light with a well-defined edge (though there is some fringing at the edge), much more so than non-zoom flashlight beams. This can create a tunnel vision effect as the edges of the spill are as bright as the centre of the beam.

When on full spot zoom, a similar effect is created by the fact that there is almost no spill with the beam well focussed into a tight spot beam. This is a great beam for peering into an engine bay or similar deep view scenario, or for long distance spotting.

There isn't really a happy medium, as the effect of changing the focus from flood to spot simply takes the flood beam's disc of light and makes it smaller and smaller until it is the full spot beam.

The usefulness of a zoom beam is not lost on the general population as there are so many cheap zoom lights available and being consumed happily enough. As long as you are aware of its characteristics and are happy to work with them, then all is well. The HP7R's focusing system is the most efficient I've measured, with no change in output between flood and spot thanks to the optic design, so the inefficiencies of zoom lights have been eliminated or at least evened out.

The PWM used for the Low beam is 454Hz and can be seen when there is movement.

Included in the kit are two plastic clips, a belt clip and a wall mount. Unfortunately I find them unusable due to be far too stiff to get the light in and out of them. Considering the thought that went into the full package this is a pity as they would have been useful.

Though the finish on the HP7R started very clean, even during my standard minimum two week review carry period, the anodising has started to chip on the edges and scratch through on the body, so is already looking a little second-hand.

So, is the HP7R great? Well I'll leave you to decide that, but consider that it is very useful, simple and provides you with a full, easy to use, USB rechargeable kit without the need for anything else. It is a good way to bring someone into the LED lighting era and for the average person will give them everything they need.



Review Summary

Things I likeWhat doesn't work so well for me
Zoom beam with no loss in output betweenSpot and Flood Visible PWM on Low
Easy USB rechargingSupplied plastic mounts too stiff to use
Batteries can be charged in, or out, of the HP7RAnodising already marking after light use
Comprehensive kit with everything included
Optional AAA power source 


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