Night patrol: which light for the doorway ahead and the lock in your hand?

A security officer in a reflective vest seen from behind at a dark loading dock doorway at night, a flashlight beam pointing down a long concrete corridor to a door, a headlamp switched off on the forehead.

On a night round? The light switches from the doorway ahead to the lock in your hand.

On a round you look at the doorway ahead, walk the floor, read a lock, then handle keys, a radio and a notebook. For the last three, your hands are busy.

Short answer

If the torch your employer issues does the job, keep it. For close work with both hands busy, the Nitecore HA27 UHE headlamp: its 8 lumen setting is two presses from off, and it has red light. If you also choose your own torch, the MH12 Pro has a swappable battery and a holster in the box. Whether a headlamp is allowed on your site is for your employer to say.

See the kit ↓

The job at a glance

One foot patrol round of a property at night, as a security officer. This page covers the light only. It does not cover hazardous atmospheres, live electrical work, confined spaces, roof edges and work at height, lifting, traffic control, weapons or confrontation. The Singapore guideline on what employers provide is further down.

  • 7 momentsin one round where the light you need changes
  • 8 lumensthe HA27 headlamp’s lowest white setting, two presses from off
  • Both handsbusy with keys, a radio and a notebook
  • Swapsthe MH12 Pro torch takes a spare battery (NL2155HP)
  1. Prepare at the guard post. Check the controls, the charge and the radio. Both hands are free.
  2. Look at the doorway ahead. See the marking or obstruction at the door, not only a bright patch.
  3. Walk the surface. See your footing and what is near your feet.
  4. Read the lock or tag. See every character without a reflected hotspot.
  5. Handle keys, radio and notebook. Your hands are full, so the light goes on your head.
  6. Record and report. Read your notes and write the log.
  7. If a light fails. Stop the round and return, or call for help.

Your round, step by step

At the guard postTest both lights
Check the lights and the radioPress each light on and check the charge: four green lights on the MH12 Pro, a short press of MODE on the HA27 when it is off. Charge both before you go. Keep the second light apart from the first.
An officer at a guard post desk pressing the button on a headlamp, with a flashlight, a radio in its cradle and a notebook beside it, lit by a desk lamp and the headlamp.
The doorway aheadHandheld on
Point the torch at the doorYou need to see the marking or obstruction at the doorway, not only a bright patch. The radio stays in your other hand.
An officer seen from behind pointing a flashlight down a dark concrete corridor to a metal door at the far end.
The walking surfaceHandheld on
Point the torch at the floor in front of youYou need the footing and anything near your feet, as well as the surroundings. A bright spot far ahead does not show you the floor.
Looking down from an officer's eye height at a wet concrete floor and a painted step edge lit by a flashlight beam, with the officer's boots and flashlight hand in view.
The lockLowest setting
Headlamp on 8 lumens, both hands on the lock and keysDouble press the Power button from off. Read every character on the lock and its tag. If the label reflects, lower the setting or change the angle.
A hand holding a padlock with a blank paper tag and a ring of keys, lit by a small soft pool of light from a headlamp.
Keys, radio and notebookLowest setting
Write the note with the light on your headThe torch does not go in your teeth or on an unsafe surface. Hold MODE from off for the HA27’s 5 lumen red light, if your post allows it.
An officer writing in a notebook under a small pool of light from a headlamp, with a radio clipped on the vest shoulder.
Record and reportLowest setting
Read back your notesRead back your notes under the headlamp before you move on.
If a light failsHeadlamp on
Stop the round and walk back, or call for helpSwitch on the other light. Do not carry on with a full inspection on the backup.
An officer walking back along a car park service lane toward a distant guard post window, the flashlight dark in one hand and the headlamp on.

How much runtime does your light need?

Most of a round the light is off or on its lowest setting. No source gives a round time, so the 24 minutes of light across six rounds and the 10 minute window for getting back or calling for help are our planning figures. Replace them with your own round.

What the night needs

hours

One night shift: 12 hours (our assumption)
Light on, six rounds: 24 minutes (planning figure, too short to see at this scale)
If a light fails: a 10 minute window to get back or call for help (planning figure)
ShiftLight on during roundsFallback window

One HA27 battery gives 65 hours on the 8 lumen setting, measured at 26°C. The light gets dimmer as the battery drains. The MH12 Pro’s included battery gives 50 hours on 50 lumens.

What one battery gives

hours

MH12 Pro torch, 50 lumens: 50 hours
MH12 Pro torch, 300 lumens: 8h30
HA27 headlamp, 8 lumens: 65 hours
HA27 headlamp, 100 lumens: 15 hours
HA27 headlamp, 280 lumens: 7 hours
MH12 Pro torch, included batteryHA27 headlamp, its own battery

Measured to the ANSI/PLATO FL 1-2019 standard. The HA27 figures are at 26°C.

How close you need to see

First-person view of a hand holding a padlock and its blank tag, lit by a headlamp, with a dark corridor and a doorway fading into the distance behind it. In your hand: the lock and its tag At your feet: the floor and the step Down the corridor: the doorway

Illustration, not a measured beam pattern.

What the light has to do

The lowest setting is for your hand. The torch is for the corridor. No source gives a distance or a target size for any step of a round, so this page gives none. Your site sets how far you need to see.

The MH12 Pro’s 505 m is where its beam fades to moonlight level on the turbo setting. It does not say how far you can read a marking.

What lumens do not say

The MH12 Pro has one tight hotspot and gives white light only. The HA27 has a wide flood beam. It has three colour settings: cool white (6,500 K, CRI 73), neutral white (4,500 K, CRI 83) and warm white (3,000 K, CRI 97).

If the battery runs down, or the lamp fails

Battery runs down

Swap in a charged spare, standing still in a safe place: the NL2155HP for the MH12 Pro, the HLB1500 for the HA27. The HA27 also runs on 3 AAA batteries, without its turbo setting.

Light fails, drops or gets lost

The other light, which has its own battery. A spare battery does not fix a broken or lost light.

Practical checklist

  • Charge both lights at the post before each round. Two batteries do not help if you missed the charge on both.
  • Lock both in your bag. On the HA27, hold both buttons for 2 seconds until it flashes 3 times, and repeat to unlock. For the MH12 Pro, see its manual.
  • The two HA27 buttons differ in shape and touch. Learn them by feel: a double press of MODE is SOS.
  • The MH12 Pro’s tail switch and side button can need a different grip.
  • Carry the MH12 Pro in the holster from the box, or on its clip or lanyard. That carries it. It is not fall protection.
  • The headband and clip are not approval to fit a headlamp to a helmet. Ask your employer and the helmet maker.

The kit we’d pack

MH12 Pro flashlight
Handheld torch
MH12 Pro flashlight
S$179
  • 50 lumens for 50 hours and 300 lumens for 8h30, on the included battery
  • The battery swaps: a spare (NL2155HP) fits
  • Holster, clip and lanyard come in the box
  • Lowest setting (1 lumen): hold the side button, then click the tail switch
  • Waterproof to 2 m under water (IP68), 82 g without the battery
View product →
HA27 UHE headlamp
Headlamp for close work
HA27 UHE headlamp
S$79
  • 8 lumens white, two presses of Power from off. 5 lumens red, hold MODE from off
  • 65 hours on 8 lumens and 15 hours on 100 lumens, on one battery
  • Lock it in your bag: hold both buttons for 2 seconds
  • 100 g with its battery (HLB1500), which charges by USB-C in about 1h30
  • Protected against strong water jets (IPX6)
View product →
Torch and headlamp S$258

Each light is the other’s backup. The torch your employer issues counts as well.

Already own a light? Check it against this list.

  • It has a setting you can reach from off that is low enough to read a lock without glare.
  • You can switch it off in one move.
  • Your employer allows you to carry it.
  • You can work its controls without looking.
  • You have a second light with its own battery.

Other options

EDC23 compact flashlight
Compact torch
EDC23 flashlight
  • Half-press and hold the power button for 15 lumens. Release and it goes off.
  • The battery is built in, so you cannot swap it. Protected against splashing water (IP54).
S$129
View flashlight →
HLB1500 battery pack
Spare for the HA27 headlamp
HLB1500 battery pack
  • The same battery pack that comes with the HA27 UHE.
  • 1,500 mAh, charges by USB-C in about 1h30.
S$19
View battery →
NL2155HP battery
Spare for the MH12 Pro torch
NL2155HP battery
  • A 21700 cell, 5,500 mAh. Buy the HP, not the HPi, which is for i-Series lights.
  • It has no USB port. It charges inside the MH12 Pro or in an external charger.
S$59
View battery →

Runtimes measured on the setting and battery listed.

What the guideline says

The guideline is industry guidance. It names no lamp model, no lumen figure and no headlamp, and says its measures are suggestions to adapt to each workplace. Nothing here is approved or endorsed by SAS, USE, MOM or any security agency. The task list is an example from a US employer, not a Singapore patrol procedure.

Questions

My employer gives me a torch. Do I need anything else?

Not if the issued torch does the job. The Singapore private security guideline puts providing the torch on the employer. Test it on the doorway, the floor, the lock and your record. A round adds close work with both hands busy, which is where a headlamp helps.

Why a headlamp when I already carry a torch?

At a lock one hand holds the lock and the other holds the keys, with a radio and a notebook still to handle. A headlamp keeps the light on what your head faces and leaves both hands free. The HA27 gives 8 lumens two presses from off, and red light. Its beam follows your head, so it can sweep across a person's face when you turn.

Can I wear a headlamp on patrol?

Your employer decides. Ask what your post orders and the site's rules allow before you carry one. Do not fit a headlamp to a helmet unless your employer and the helmet maker have approved that exact combination.

Is this light certified for hazardous areas?

No. None of the lights on this page is certified for explosive atmospheres. Do not use any of them to light flammable or explosive materials. A water rating (IP68, IPX6 or IP54) does not make a light fit for any hazardous work.

Which setting for reading a lock?

The lowest setting that shows every character. On the HA27, double press Power from off for 8 lumens. On the EDC23, half-press and hold the power button for 15 lumens. On the MH12 Pro, hold the side button and click the tail switch for 1 lumen. If the label reflects, lower the setting or change the angle.

How long does a charge last?

Most of a round the light is off or on its lowest setting. One HA27 battery gives 65 hours on 8 lumens and 15 hours on 100 lumens, measured at 26°C. The MH12 Pro's included battery gives 50 hours on 50 lumens and 8h30 on 300 lumens. Charge both at the post before each round.

Can I use my phone torch?

A phone needs a hand, and your hands already hold keys or a radio. A headlamp keeps both free.

What does this guide not cover?

Hazardous atmospheres, live electrical work, confined spaces, roof edges and work at height, lifting, traffic control, weapons and confrontation. It is a buying guide for lights, not a patrol procedure.

Questions about your own gear? Contact the team.

Sources and credits

  1. Security Association Singapore with the Union of Security Employees, WSH Guidelines for the Private Security Industry: lighting, torchlight and flooring measures. content hub copy
  2. Ministry of Manpower, Risk management. mom.gov.sg
  3. Allied Universal, Protect Your Investment with Patrol Services: the foot patrol task list. A US employer, not a Singapore procedure. aus.com
  4. Nitecore, MH12 Pro manual. nitecore.com
  5. Nitecore, HA27 UHE manual. nitecore.com
  6. Nitecore, EDC23 manual. nitecore.com
  7. Nitecore, MH12 Pro product page. nitecore.com
  8. Nitecore, HA27 UHE product page. nitecore.com
  9. Nitecore, EDC23 product page. nitecore.com
  10. Nitecore Singapore, catalogue and price snapshot, 6 October 2026. nitecore.sg

This is a buying guide for lights, not post orders or a patrol procedure. Your employer’s post orders, risk assessment and the site’s rules decide what you carry. None of these lights is certified for hazardous atmospheres.

We have not tested these lights on a patrol. The runtimes are for the setting and battery listed.

Scene illustrations on this page were created for this guide and do not show a real patrol or site.

Last reviewed 6 October 2026.