200W UFO High Bay Light
The 200W high bay is the standard fixture of real warehousing — the class specified for 8–12 m ceilings where distribution centres rack, pick and load. At this height the beam angle does the work: a medium 90° beam covers open floor, while narrower optics push light down between racking so the aisle floor, not the rack tops, receives the lumens.
Seven SJGK housings carry a 200W variant — the broadest choice in the range — from the ultra-slim SJGK912 UFO to the air-convection SJGK909 tower. All are IP65-sealed with dimmable driver options for zoned warehouse control.
Where 200W Fits
Guidance from the standard height-wattage ladder — confirmed free with a DIALux study of your racking plan.
8–12 m: general and high-rack warehousing, production halls, logistics hubs. Use 150W at the bottom of the band for lighter targets.
Align fixtures over aisles with narrow (60°) optics so light reaches the pick face and floor; a grid ignoring rack lines wastes a third of its lumens on rack tops.
Distribution centres, high-rack stores, production halls, cold-store ante-rooms, maintenance bays, indoor courts.
0-10V or DALI dimming plus occupancy zoning cuts energy sharply in aisles with intermittent traffic — standard practice for round-the-clock sites.
SJGK Housings Available at 200W
| Series | Design Highlight | Dimensions (⌀ × H) | |
|---|---|---|---|
 | SJGK901 | Die-cast classic, fins-cooled | φ480 × 300 |
 | SJGK902 | All-aluminum, air-duct heat dissipation | φ400 × 290 |
 | SJGK906 | UFO with flame-retardant optical lens | φ354 × 122 |
 | SJGK908 | High-purity reflector, glare-free | φ400 × 265 |
 | SJGK909 | Air-convection cooling tower design | φ416 × 420 |
 | SJGK910 | Matrix glass lens, 7070 chip | φ442 × 266 |
 | SJGK912 | Ultra-slim UFO with respirator valve | φ355 × 93 |
Dimensions in mm from the factory catalog. All housings: aluminum body, 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.
Distribution centres and high-rack storage
The standard warehouse fixture. At 8–12 m the beam angle does the work: narrow optics aligned over aisles put light on the pick face and floor, while a grid that ignores the rack lines wastes roughly a third of its lumens on rack tops.
- 8–12 m mounting height band
- Aisle-aligned layout, narrow optics
- Free DIALux study from your rack pitch
Production halls and manufacturing floors
Round-the-clock production rewards two things: efficient fixtures and controls that let idle zones drop to a low level. Dimmable drivers with occupancy zoning typically save more than any efficacy difference between brands.
- 0-10V / DALI dimmable drivers
- Occupancy zoning for shift patterns
- Low-ripple drivers for rotating machinery
Transit sheds and cross-dock buildings
Wide-span buildings with constant vehicle movement need even floor light and no dark transitions at the doors. Fixture positions follow the traffic routes, not just the roof grid.
- Even floor lux across wide spans
- Layout follows traffic routes
- IP65 for dock-door exposure
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.
The classic warehouse mistake in every lighting thread: an even grid over racking, with a third of the light landing on rack tops. Fixtures belong over the aisles with narrow optics — the difference is 30%+ of usable light at identical wattage. We lay the grid out free from your rack pitch.
200W LED replacing 400W metal halide is the standard, genuine swap — when the LED's output is real. Ask for the IES file and measured data, not the listing figure; run both through the calculation before ordering hundreds of units.
A fixture rated to +35 °C ambient dies young under a 45 °C summer roof. Our industrial ranges are rated for wide ambient bands — check any supplier's Ta figure against your real roof-space temperature, not the weather report.
Two lm/W between brands is noise; 0-10V/DALI zoning with occupancy sensing in low-traffic aisles is 30–50% of the energy bill. If the site runs shifts, specify dimmable drivers now — retrofitting control later costs the savings twice.
200W UFO High Bay Light — Answered
What ceiling height suits a 200W UFO high bay?
8–12 m. This is the standard class for general and high-rack warehousing: enough output to hold 150–200 lux at floor level from 10 m with the right beam, without the glare of over-driving lower ceilings. Above 12 m, move to 300W+ or high-power bodies.
How do I light warehouse racking aisles with 200W high bays?
Run fixture lines along the aisle centreline with narrow (≈60°) optics, spaced at roughly 1.2–1.5 × mounting height along the aisle. This puts light on the pick faces and floor rather than the rack tops. We lay this out free in DIALux from your rack pitch and aisle width.
What does a 200W LED high bay replace?
The classic swap is a 400W metal halide high bay — at roughly half the connected load with better floor lux, instant-on and no group relamping. Validate with the IES file rather than wattage equivalence alone.
Are dimmable and sensor options available?
Yes. 200W SJGK units are available with 0-10V or DALI dimmable drivers, and zoned control with occupancy sensing is the standard energy play for aisles with intermittent traffic. Specify the control system in your enquiry and we configure the drivers to match.
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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