Zebralight Summary

​

Zebralight H50 with GID bracket
​

Zebralight H50 Prototype



CAD Image with pocket clip

Make/Model: Zebralight H50 1AA Headlamp

• H50-P4: Standard Model with P4 bin Cree XRE LED.
• H50-Q5: Limited Edition with Q5 bin Cree XRE LED. Production run limited to 90.

Cost:

• H50-P4: US$39 + pp.
• H50-Q5: US$49 + $5 pp.

Ordering:

• Direct from Zebralight's website zebralight.com. From other dealers later. May be a sub-forum over at CPFMarketPlace later.
• There is no pre-order list for the H50-P4.
• A H50-Q5 pre-order list is here. List is now fully subscribed. (Update 8/9/07: those on Q5 pre-order list should have received a PM giving paypal details.)

Shipping:

• George @ Zebralight is said the H50 can be ordered and shipped from next week (first week of September). Message Link

LED:

• H50-P4: 1 off P4-WC bin Cree 7090 X-RE. (For first batch anyway)
• H50-Q5: 1 off Q5-WG bin Cree 7090 X-RE.
• Q5 bin: 107-114 lumens at 350mA
• P4 bin: 80.6-87.4 lumens at 350mA
• Q5 bin produces an average 32% more lumens than P4 bin (best 41.4%, worst 22.4%)

Batteries:

• 1 off 1.2-1.5V AA, Alkaline, NiMH rechargeable, Li-Fe (Energiser Lithium L91).
• Li-Ion (14500) are not supported.

Circuitry:

• All levels output regulated (boost voltage/current regulated). No PWM.
• Circuit is optimised for single cell (1.5V) operation.
• The circuit can take up to 4.2V but is NOT supported due to heat buildup.
• The circuit won't start below 1.1v. However, if the circuit is already on (>= 1.1v), it will work down to 0.9v.
• If the light is turned off for more than 5.6 seconds, the light level resets to low.

Performance: H50-P4

• Low: 2.6 lm for 85 hr
• Med: 13.0 lm for 19 hr
• High: 65.0 lm for 2.5 hr
• Runtimes performed using a H50-P4 model and a Sanyo 2700 mAh nimh battery

Performance: H50-Q5

• Low: 3.4 lm for 85 hr
• Med: 17.2 lm for 19 hr
• High: 85.8 lm for 2.5 hr
• Output levels calculated from H50-P4 data x 1.32.

Beam Type:

• Flood, 120 deg spread.
• Small TIR lens used. Most of the Cree rings subdued with the TIR.
• The optic in the ZebraLight H50 does not do ANY collimation. It's designed to bring back as much as possible the original bare LED beam pattern, which is altered a bit since the LED is now recessed in the aluminum case.

Length:

• 66 mm

Diameter:

• 18.3 mm

Form Factor:

• Cylindrical

Weight:

• 17g without battery or headband.
• 75g total weight, allowing 28g for NiMH battery and 30g for headband.

Material:

• 6061 aluminium body, Hard Anodised III (HAIII)
• Hardened Lexan polycarbonate lens dome.

Water Resistance:

• IPX6 (TBC)

Switch:

• Twisty tailcap. Tailcap removable to replace battery.
• Off, Lo, Off, Med, Off, Hi.
• It will be difficult to operate with one hand.

Headband:

• The headlamp is mounted using a silicon bracket, filled with GID powder, to the elastic headband.
• Headlamp easily detached from bracket to use handheld.
• The emitter is off center about 27.6mm.

Light Angle:

• Headlamp rotates within bracket to adjust light angle.

Other Models:

• Planned Zebralight headlamp models:
  • H20 – CR2 (15266)
  • H30 – CR123 (17335)
  • H40 – AAA (10440)
  • H50 – AA (14500)
  • H60 – Li–Ion (18650)
• After releasing the H50, Zebralight will consider manufacturing H30, H20, H60, and maybe H40.
• The red LED or filter support will be in the Hx1 series. (Will not be released in 2007).
• Release dates for these models are undecided.

Modding:

• The head is not accessible for any mods. It's sealed with heat conductive epoxy. Head bonded to battery tube.

Accessories:

• Pocket clip, Anti-glare device for glasses. Two extra GID silicon brackets, one with a neck lanyard.

Warranty:

• 1 year warranty against defects in workmanship and materials, provided that the product remains unmodified and is operated under normal and proper conditions.
• Shipping addresses in the U.S. and China for returns and warranty services.

Competitors:

• Fenix are producing a Cree headlamp. Due end 2007/early 2008.

Beamshots:



H50 hanging about 16cm (6 inch) from a projection screen. Higher light level in the center is in part caused by the closer distance between the light source and the screen in the center. There are still some artifacts from the square die LED on the projection screen (or white walls).



The beam is about 120 degree wide. You can see from this picture that the center area is not much brighter than the rest.





taken with a 42mm (28mm*1.5) lens. the light beam is much wider than what my camera can handle.



The hallway picture was taken with a long exposure time of 15 seconds at F8, ISO 640. The headlamp was set to High with some 83 torch lumens out of the front (or the side in the case of the H50).

Humour:

• Shakeylegs put together these lyrics as an ode the Zebralight. All together now...
• To the tune of Money for Nothin':
  
  I want my, I want my ZebraLight
  I want my, I want my ZebraLight
  
  Now look at them yo-yo's, that's no way to do it
  They're wearin' headlamps big as ATV's
  That ain't workin', here's the way to do it
  Lumens weigh nothin', ZebraLight's for me
  
  Now this is workin', here's the way you do it
  Lemme tell ya, ZebraLight ain't dumb
  Got to get my Zebra its a little twister
  Want to twist that Zebra with my thumb
  
  I want to install lithium batteries
  Flood a campsite, deliberately
  We got to end this, procrastination
  We got to move these little beauties
  
  I know you really really really want to ship me
  My little Zebra, its only fair
  That mythic Zebra with the steel clip and the headband
  Oh George please show me it ain't vaporware
  
  I want to install lithium batteries
  Flood a campsite, deliberately
  We got to end this, procrastination
  We got to move these little beauties:naughty: