Measured 2026-08-08 · R.M.SKU CAL-LGT-HL4

Headlamp 400

Name: Headlamp 400 — Calibrated Supply Co.
Brand: Calibrated
SKU: CAL-LGT-HL4
Price: 89.00 USD
Availability: InStock
Rating: 4.9 (1043 reviews)

400 lumen white, 12 lumen red, memory on red

4.9 / 51,043 reviews

It always comes on in red. That one decision is worth more than the other 399 lumens.

$89.00

CAL-LGT-HL4 · USD

In stock

Standard shipping $8.95 · 3–5 business days. Free over $99.
60-day returns. One-time purchase — no subscription and no recurring charge.
Weight 84 g / 3.0 oz, measured 2026-08-08 on Integrating sphere, ANSI FL1. The same numbers are printed on the Field Card in the box.

Your card statement will show CALIBRATED SUPPLY for this order, not “Calibrated”. Questions? support@calibratedsupply.com · +1 (714) 269-7133.

Measured

How we measure

Weight

84 g / 3.0 oz

With the cell fitted and the strap on.

White output

400 lm high, 90 lm mid, 20 lm low

Measured at the emitter at 30 seconds, ANSI FL1.

Red output

12 lm

620 nm. Low enough to read a map by and not blow a sit.

Runtime

2 h 10 min high / 9 h mid / 41 h red

To 10% of initial output, at 20°C, on the supplied cell.

Powers on in

Red

Every time, regardless of what it was on when you turned it off. This is the whole design.

Waterproofing

IPX6

Taken 2026-08-08 on Integrating sphere, ANSI FL1 by R.M.. The same values are printed on the Field Card in your box, so the page and the carton can never disagree.

What it is made of

Single-button interface
One button, three white levels and red. Nothing to learn in the dark.
18650 rechargeable cellUSB-C, in-lamp
Charges off the Field Power Bank. No proprietary dock.
Silicone-backed strap
Stops the lamp creeping on a bare forehead.

The full description

Every headlamp on the market has a red mode and almost all of them come on in white, which means the first thing you do at 4:30am is light up the whole woods and your own night vision. This one powers on in red every single time, no matter what mode you switched it off in.

Four hundred lumens on high when you need to find a blood trail, ninety in the middle for walking, twenty on low, and twelve lumens of 620 nm red for everything else. USB-C into the lamp itself, on a standard 18650 cell you can replace in five years for the price of a sandwich.

Bought for

Every dark walk in and every dark walk out.

Not for

Anyone who wants a thousand lumens. This is not that lamp and it does not want to be.

Field notes

01Walk in on red or on the 20 lm low. High is for finding something, not for going somewhere.
02Charge it off the Field Power Bank in the truck between sits. USB-C both ends, cable in the box.
03Cold halves runtime. In late season, carry the bank and assume the numbers above are optimistic.

On the bench

Red

the mode it powers on in, every time

Our own testing, on production samples, with the method stated in the spec table above. Nothing here is a claim about what will happen on a hunt.

In the box

Headlamp 400
18650 cell, fitted
USB-C cable, 300 mm
Spare strap
Field Card

Construction, care and warranty

Construction: Polycarbonate housing with an aluminium heat path; single CREE-class white emitter and a 620 nm red emitter; single-button interface with red-first power-on; USB-C charging into the lamp; IPX6 sealed; silicone-backed elastic strap.
Care: Charge before storage and every six months in storage. Do not leave a flat cell over a summer.
Warranty: Three years on electronics, one year on the cell.
Bought for: Whitetail, Western, Late season, Waterfowl
SKU: CAL-LGT-HL4
Price: $89.00 USD

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