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The Devos LightRanger 4000 is a high-output telescoping area light built for environments where reliable lighting is mission-critical. Designed for disaster response, search and rescue operations, command posts, and field deployments, it delivers powerful overhead illumination in a compact, rapidly deployable system.

With up to 4,000 lumens and a 100-foot diameter coverage area, the LightRanger 4000 provides consistent, shadow-reducing light across large operational zones. Its telescoping mast elevates the light source up to 10 feet, improving visibility for team coordination, medical work, equipment staging, and site control.

Engineered for portability and rapid setup, it allows responders, crews, and field teams to establish effective lighting without generators or complex setups.

"A prudent person foresees danger ahead and takes precautions. The simpleton goes blindly on and suffers the consequences. - Proverbs 27:12"

— CHARLES, SRO FOUNDER & FORMER LAW ENFORCEMENT.

High-Output Area Lighting

Up to 4,000 lumens illuminates wide operational zones for improved visibility and safety

Command Post & Base Camp Ready

Covers up to 7,800 sq ft — staging areas, triage zones, and mobile command setups

Elevated Lighting System

Telescopes from 3 ft to 10 ft to reduce shadows and improve line-of-sight visibility

Extended Runtime

Operates up to 80 hours on low output for sustained operations

Rapid Deployment

Lightweight, compact system deploys quickly without external power

Rechargeable Power Platform

Integrated battery eliminates generators and fuel logistics

The numbers, flat and honest.

Max Output 4,000 lumens
Coverage Up to 7,800 sq ft (approx. 100 ft diameter)
Height Range 36 in to 120 in (3 ft to 10 ft)
Runtime Up to 80 hours (low output)
Weight Under 6 lb
Power Rechargeable Li-ion battery
Control App-enabled + onboard controls
Use Case Emergency response, SAR, base camps, field operations
⸻ The SRO Standard

WHY YOU’RE BUYING FROM STAY READY.

We aren’t the Amazon of survival. We’re a small, opinionated shop that carries gear we’d stake our own lives on — and we back every piece with real support.

01

Curated

Every brand we carry has been vetted in the field by our team. If it doesn’t pass our 30-day use test, we don’t stock it.

02

Authenticated

Factory-direct from authorized dealers. No grey-market, no refurb, no knockoffs. Your warranty is real.

03

Supported

Real humans on phone, text, and email — seven days a week. We carry this gear ourselves and we stand behind it.

04

American

HQ in California. Orders ship from our US warehouse. US-based customer care.

OUTDOOR LIGHTING & POWER

Built for life outside. Portable LED lighting and power, designed in Utah.

Devos — short for Developing Outdoor Solutions — is headquartered in Springville, Utah, designing portable LED lighting and power gear for camping, overlanding, RVing, job sites, backyard use, emergency setups, and even youth sports sidelines. The LightRanger line and the power-bank and solar accessories around it are built to be easy to use, durable, and ready when they're needed most. Every product backed by a 2-year warranty and US-based customer service.

  • Headquartered in Springville, Utah
  • Name stands for 'Developing Outdoor Solutions'
  • LightRanger LED lighting and portable power accessories
  • Designed for camping, overlanding, job sites, and emergencies
  • 2-year warranty + US-based customer service

Answers, straight up.

Product-specific questions on the left. Shopping with SRO on the right. Both open-ended — hit us if we missed one.

About this product
Which LightRanger size should I get?

The 800 Mini packs down to 16.5 inches and suits a tent or small site. The 1200 extends to 9 feet and lights a typical campsite. The 2000 and 4000 are area lights for group camps, work sites and recovery scenes. If you are lighting a whole camp for a crew, start at 2000.

How do I recharge it, and can I run it off solar?

Everything in the LightRanger and AMPak line charges over USB-C. You can top up from a wall adapter, a vehicle, an AMPak power bank, or the Devos 20W or 40W solar panels — which lets the system run indefinitely off-grid without shore power.

Can it stay out in the rain?

The LightRanger lights and AMPak 20 carry an IPX6 rating and the Ultimate Kits are rated IP56, meaning they shrug off heavy rain and blowing spray. None of it is rated for submersion, so do not drop it in the creek.

Why would I want colored lens filters?

Red preserves night vision and draws far fewer insects than white light. Amber softens the light for close-in camp tasks and photography. Green is the traditional choice for hunting and low-signature use. The filters snap on and off the lens, so you can change color without tools.

Shopping with SRO
How long does shipping take?

Most in-stock orders are processed within 1 to 3 business days, not counting weekends and federal holidays. Special-order, dealer-direct, custom, and LYNX Survival Systems orders can take longer. Lead times shown on product pages are estimates, not guarantees.

Typical carrier transit after that: Economy 5 to 7 business days, Expedited 2 to 3, Overnight 1. These are carrier estimates, not guarantees. Some items, such as lithium batteries, aerosols, and safety matches, may be limited to ground shipping.

Free Economy shipping on qualifying orders over $150 to the contiguous US, on eligible products. Oversized, heavy, freight, hazardous-material, dealer-direct, custom-built, and special-order items may be excluded. Oversized and freight items, such as rooftop tents, recovery equipment, and Pro Eagle products, may carry extra shipping charges. If extra charges apply, we'll let you know before the order ships.

Some items ship directly from the manufacturer or a supplier partner on their own schedule, so an order can arrive in more than one package with more than one tracking number. Full details: Shipping Policy.

What’s your return policy?

You have 30 days from receiving your order to request a return on eligible items. Email info@stayreadyoutdoors.com with your order number, the item, and the reason, and wait for return authorization before you ship anything back. Returns sent without authorization may be refused.

Items must come back in like-new condition: unused, unmodified, unworn, unwashed, and free of odors, dirt, stains, pet hair, and damage, with all original packaging, manuals, accessories, and tags, plus proof of purchase.

For standard parcel items, you pay return shipping unless the return is due to our error, shipping damage, or a verified defect. If we provide a prepaid label, its cost may be deducted from your refund. For oversized, freight, dealer-direct, and special-order items, you pay return shipping unless the item arrived damaged, defective, or incorrect. Original shipping charges aren't refunded. Some items may carry a restocking fee of up to 15%, and we'll tell you during authorization.

Some items are fulfilled by third-party suppliers and follow that supplier's return policy, so eligibility, refund timing, return shipping, and restocking fees may differ.

Approved refunds go to your original payment method. Allow up to 10 business days after approval, and your bank may take longer to post it. Full details: Return & Refund Policy.

What can’t I return?

These can't be returned or refunded, except where the law requires it:

  • Engraved, personalized, customized, and built-to-order products, and special-order products obtained specifically for you
  • LYNX Survival Systems survival kits, custom IFAKs, and custom medical kits
  • Agency, government, organizational, and contract-built orders
  • Gift cards, and sale or clearance items marked final sale
  • Food, drink, and other perishable products, including emergency food
  • Personal care, hygiene, and beauty products
  • Hazardous materials, and flammable liquids or gases
  • Opened or used medical products
  • Opened water treatment or purification products with broken factory seals
  • Anything marked non-returnable on its product page

For built-to-order, custom, and special-order items, exceptions may be made only for verified manufacturing defects, shipping damage, or fulfillment errors. For food and drink, replacements may be issued only for verified manufacturing defects or shipping damage reported within 5 days of delivery, with photos.

Not sure whether an item qualifies? Email info@stayreadyoutdoors.com before you order.

Do you ship outside the contiguous US?

Alaska, Hawaii, Puerto Rico, Guam, and other U.S. territories aren't eligible for free shipping, and extra freight charges may apply. If your order needs a shipping quote, we'll contact you before it ships. If you decline the quote, the order may be canceled and refunded. APO/FPO addresses are also excluded from free shipping.

International shipping is available on select products and destinations, and some products may be restricted from international shipping. You're responsible for import duties, taxes, customs fees, brokerage fees, and meeting your country's import rules.

Full details: Shipping Policy.

My package arrived damaged. What now?

Inspect your order when it arrives. If anything is damaged, defective, or wrong, email info@stayreadyoutdoors.com within 7 days of delivery (5 days for food and drink) with your order number, a short description, and photos of the item and the packaging.

You don't pay return shipping on items that arrived damaged or wrong, or with a verified defect. Some items fulfilled by third-party suppliers follow that supplier's policy instead. Reporting after 7 days may limit our ability to pursue a claim with the carrier, and while we may help with a carrier claim, approval is up to the carrier.

Package lost or never arrived? Contact us within 7 days of the expected delivery date. For freight deliveries, inspect the shipment before you sign and note any visible damage on the carrier's delivery receipt.

Can I talk to a human before buying?

Yes. Call (562) 294-6269, Monday to Friday, 8:00 AM to 4:00 PM Pacific time, or email info@stayreadyoutdoors.com. We reply within one business day.

We'd rather talk you out of a kit that doesn't fit your mission than sell you the wrong one.

Do you offer a military/first-responder discount?

Yes. Current and former U.S. military, military spouses and dependents, and first responders, including law enforcement, fire, and EMS, can save up to 10% on most of our products through GovX ID.

Verify on our GovX discount page and you'll get a single-use code to enter at checkout. For later orders, log in with GovX ID for a new code (limit one code per day). The GovX code can't be combined with other discounts.

IMPORTANT USE NOTES

Runtime and coverage figures are manufacturer-stated maximums and vary with output setting, ambient temperature, and battery condition.