300W LED Flood Light
At 300W, a flood light crosses from area lighting into project lighting: training pitches, container yards, mid-height mast rings and large aprons — positions where the fixture is specified from photometric files and the order is counted in dozens. It is also where verification matters most, because a 20% lumen shortfall multiplied across a site is a failed commissioning measurement.
So this page leads with the measurement: a production 300W unit tested on a calibrated goniophotometer delivered 50,879 lm at 302.3 W — 168.3 lm/W — with a 58.7° × 59.5° symmetric beam peaking at 49,795 cd and a power factor of 0.994. The full 16-page report and the IES file are downloadable below; put them in your design model before you put them in your purchase order.
Measured, Not Claimed
Third-party goniophotometer test of a production unit. Download the full documents below — no email gate.
| Power consumed | 302.3 W @ 220.8 V |
| Power factor | 0.994 |
| Luminous flux | 50,879 lm |
| Efficacy | 168.3 lm/W |
| Peak intensity | 49,795 cd |
| Beam angle | 58.7° H × 59.5° V |
| Energy class | EEI 0.085 · A++ |
Every Measured Unit, Published
All units tested on a calibrated HPG1800 goniophotometer. We publish the strong results and the modest ones — the economy build reads lower than the flagship, and both numbers are real.
Where 300W Fits
Selection guidance from the measured beam data — confirm your exact layout with a free DIALux study.
The measured 59° beam works from 10–18 m: sports poles, yard masts, apron and facade positions above the 200W band.
From 15 m, one unit holds a core of roughly 16–18 m diameter — verify with the downloadable IES file at your exact geometry.
Training pitches (in multiples per pole), container yards, rail depots, large car parks, building washes and perimeter masts.
Below 10 m, 200W usually covers with less glare; above 18 m or for stadium targets, move to 400–480W or the modular SJTG611 platform.
SJTG Housings Available at 300W
| Series | Design Highlight | Dimensions (L×W×H) | |
|---|---|---|---|
 | SJTG602 | Separated cavity — driver heat isolated from LED | 693 × 92 × 443 |
 | SJTG604 | High-purity reflector, uniform output | 362 × 136 × 421 |
 | SJTG606 | Multi-module design, extends to 480W | 320 × 110 × 648 |
 | SJTG608 | Toughened glass + die-cast body, industrial grade | 430 × 85 × 550 |
 | SJTG609 | Industrial grade — factories, facades, sculptures | 275 × 402 × 720 |
 | SJTG611 | Modular flagship — stadium & port class | 419 × 291 × 400 |
Dimensions in mm from the factory catalog. All housings: die-cast aluminum, IP65. Full datasheet and IES/LDT files on request.
Where This Class Works
Three duties this wattage is specified for most often — and what changes in the specification for each.
Multi-court and pitch installations
The 300W class is where a single pole position starts covering a full court rather than a corner of one. Measured at 50,879 lm with a 59° beam, each unit contributes real coverage — and the downloadable IES file lets your designer prove the layout before the poles are ordered.
- 50,879 lm measured, 168.3 lm/W
- IES file downloadable — no email gate
- Power factor 0.994 measured
Aprons, ramps and mid-height masts
Between conventional poles and true high mast sits the 10–18 m band: apron edges, rail depots, equipment yards. At this height the 59° beam still lands with useful intensity, and the surge-protected driver matters as much as the optic.
- Works from 10–18 m mounting
- Surge protection specified for exposed positions
- Vibration-rated brackets available
Large yards and loading zones
Where a site needs fewer, stronger fixtures rather than many small ones, 300W reduces the pole count — and every pole removed is a foundation, a cable run and a collision hazard that never gets built.
- Fewer poles for the same covered area
- Die-cast aluminum housing, IP65
- Housing options for hot and coastal sites
How It Goes Up
The mounting methods this fixture class is supplied for. Installation photographs from delivered projects are being catalogued and will be added alongside.
Every Order Ships With the Paperwork
The documents an engineer needs to verify the design and an importer needs to clear customs — supplied as standard, not on request.
IES / LDT files for the exact housing and optic quoted, so your designer models the fixture you are buying.
A free DIALux study from your dimensions — lux, uniformity and fixture count verified before you commit.
CE / FCC / CCC documentation with the type-test reports behind it, plus the Ex certificate where applicable.
Driver spares quoted with the order and an engineer contact who answers after the invoice is paid.
Straight Answers to the Questions Buyers Ask in Forums
What buyers report in sourcing forums and marketplace reviews — and how to check any supplier, including us.
This 300W unit measured 50,879 lm at 302.3 W (168.3 lm/W) with a 58.7° × 59.5° beam peaking at 49,795 cd — on a calibrated HPG1800 goniophotometer. Both the full report and the IES file are downloadable on this page, so your designer can drop the real photometry straight into DIALux. Ask every supplier for the same two files.
This unit measured PF 0.994. Cheap 300W floods run 0.5–0.9, which inflates apparent power, heats wiring and can trip limits on large installations. It is one number on the report — read it before ordering by the container.
50,879 delivered lumens genuinely covers what a 1000W metal halide flood produced after real-world depreciation — but verify it for your geometry with the IES file rather than taking the equivalence on faith. That is exactly what the file is for.
We also publish a compact economy 200W variant that measured 127.9 lm/W against the flagship's 175.4 — both honest builds at different price points. Any factory has this spread; the difference is whether they show you. Always confirm which build a quotation refers to.
300W LED Flood Light — Answered
How many lumens does a 300W LED flood light produce?
Our tested production unit measured 50,879 lm at 302.3 W — 168.3 lm/W — on a calibrated goniophotometer. The full 16-page report is downloadable on this page. Treat marketplace listings claiming far more per watt with suspicion, and ask for the measurement, not the brochure.
Can I get the IES file before ordering?
Yes — it is downloadable on this page, no email gate. Drop it into DIALux or AGi32 at your exact pole positions and mounting heights, and the layout you sign off is built on measured photometry rather than typical curves.
What does a 300W LED flood light replace?
Typically a 1000W metal halide flood: the measured 50,879 lm matches or beats what those fixtures delivered after real-world lumen depreciation, at less than a third of the connected load. Validate the swap with the IES file at your geometry.
Which 300W housing should I choose?
SJTG602’s separated driver cavity suits hot climates; SJTG608’s toughened-glass body suits harsh industrial sites; SJTG611’s modular platform suits projects that may scale to 400W+ later. Share the application and mounting and we recommend the housing — all carry the same certification set.
Send Us the Space, Not Just the Wattage
Share the dimensions, mounting height and the level you need to hold. Our engineers return a lighting layout with fixture count, aiming and the photometric files behind it — before you commit to anything.
Floor plan or site dimensions, mounting height, target lux or the standard you must meet.
A DIALux study with fixture count, layout, aiming and IES files — at no cost.
Your engineer checks the numbers against the standard. Only then does a quotation matter.
Manufacturing in Changzhou since 1999 · Shipping to 50+ countries · CE / FCC / CCC
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