The Ushio HiLUX GRO HPS Double-Ended Lamp is a 600-watt high-pressure-sodium (HPS) grow lamp in the double-ended (DE) format. Carrying retailers list a maximum output of 1,150 µmol at a warm 2100 K color temperature, and the lamp is optimized to run on 600-watt electronic ballasts in open fixtures. This page gives the retailer-published output and format specs, explains how an HPS grow lamp and its spectrum work, shows how the HPS version compares to the metal-halide (MH) lamp in the same line, and is honest about what Ushio does not publish for this listing — all cited.
What it is
The Ushio HiLUX GRO HPS Double-Ended Lamp is a single grow-light bulb, not a fixture or a kit — it is the lamp you install into a compatible double-ended reflector or open fixture. It is a double-ended (DE) design, with the arc tube supported and connected at both ends rather than screwed into a single base. Ushio positions the HiLUX GRO family as professional-grade horticulture lamps, and lists this 600-watt DE lamp as carrying the same optimized spectral output as Ushio’s larger 1000-watt lamps, so a smaller room can run a similar spectrum at lower total wattage. The lamps are made in Ushio’s European ISO factory, and carrying listings show them under item number US5003285.
Specifications
Every value below is what carrying retailers publish for this lamp; where Ushio does not expose a figure (rated life, lumens, voltage, base), it is held and disclosed in the honest-fit section rather than guessed.
| Lamp type | High-pressure sodium (HPS), double-ended (DE) |
|---|---|
| Wattage | 600-watt |
| Maximum photon output | 1,150 µmol maximum |
| Color temperature | 2100 K |
| Ballast | Optimized for 600-watt electronic ballasts |
| Fixture | Designed and rated for open fixtures |
| Spectrum | Same optimized spectral output as the 1000-watt HiLUX GRO lamps |
| Manufacture | Ushio European ISO factory |
| Item number (retailer-listed) | US5003285 |
| Rated life / lumens / voltage / base | Not published for this listing by the sources read — held (see honest fit) |
Why choose it
- Big-lamp spectrum at a smaller draw. Retailers list this lamp as sharing the same optimized spectrum as the 1000-watt lamps, so growers wanting the HiLUX GRO spectral profile in a smaller footprint or as supplemental light can run it at 600 watts instead.
- Double-ended output. At a listed 1,150 µmol maximum, the DE construction concentrates a compact arc between two supported ends, which is the format most modern DE reflectors are built around.
- Runs on standard electronic ballasts. Because it is optimized for 600-watt electronic ballasts, it drops into an existing DE system as a lamp replacement without changing the driver.
- ISO-factory build. The lamps are produced in Ushio’s European ISO factory, which the maker positions for consistency lamp-to-lamp.
How an HPS grow lamp and its spectrum work
Photosynthetically active radiation (PAR) is the band of light plants use to drive photosynthesis, and the photon output of a horticultural lamp is measured as the flux of photons within that band rather than as visible brightness. A high-pressure-sodium lamp produces light by an electrical arc through vaporized sodium, which emits strongly in the yellow-to-orange-red part of the spectrum — the reason HPS light looks warm and amber. Correlated color temperature describes where a light source sits on the warm-to-cool scale: lower values correspond to warmer, redder light and higher values to cooler, bluer light. That is why this lamp’s warm 2100 K rating and red-weighted output are traditionally associated with the flowering stage, where red light is a large part of what growers push. The lamp is a light source only; the biological response depends on your plants, canopy distance, and overall environment.
Best uses
- Replacement lamp for an existing DE system. If you already run a double-ended reflector on a 600-watt electronic ballast, this is a direct lamp swap.
- Smaller flowering rooms. The 600-watt draw with a 1,150 µmol output suits a tent or room where a full-size double-ended lamp would be too much heat or intensity for the space.
- Supplemental / inter-canopy HPS. The warm, red-weighted HPS spectrum is often added alongside other sources to reinforce the red end during bloom.
- Open-fixture setups. The lamp is designed and rated for open fixtures, matching the open double-ended reflectors common in commercial rooms.
How the HPS lamp compares to the MH lamp in the same line
Ushio makes the 600-watt double-ended HiLUX GRO in both HPS and metal-halide (MH) versions. This table is factual — the two are different tools, not better-or-worse; MH is bluer and often used in veg, HPS is redder and often used in bloom.
| Factor | HiLUX GRO DE HPS (this lamp) | HiLUX GRO DE MH |
|---|---|---|
| Color temperature | 2100 K (warm/red) | 5500 K (cool/blue) |
| Maximum photon output | 1,150 µmol | 1,040 µmol |
| Rated life | Held — not published by sources read | 6,000 hours |
| Ballast / fixture | Both run on 600-watt electronic ballasts in open fixtures | |
| Related listing | — | Ushio HiLUX GRO HPS Pro Plus DE Lamp |
Fixture, ballast, and compatibility notes
- Double-ended fixture required. This is a double-ended lamp; it needs a DE reflector or open fixture with contacts at both ends — it does not fit a single-ended (mogul-base) socket.
- Match the ballast to the lamp. Run it on a 600-watt electronic ballast; a browsable option is the Digilux HPS family for a matching HPS setup, and other DE lamps in the catalogue such as the Interlux HPS DE Lamp and the Philips DE Bulb cover other wattages of the DE format.
- Handle by the ends, keep the arc tube clean. As with any DE HID lamp, avoid touching the quartz body directly; skin oils can shorten lamp life once it is running hot.
- Open fixtures only. The lamp is rated for open fixtures; follow your fixture maker’s guidance on enclosure and spacing.
Frequently asked questions
What is the light output? Retailers list a maximum of 1,150 µmol for the 600-watt HPS DE lamp.
What color / spectrum is it? A warm HPS spectrum at 2100 K, red-weighted and commonly used for flowering.
What ballast does it need? A 600-watt electronic ballast, in an open double-ended fixture.
How long does the lamp last? The sources read do not publish a rated life for the HPS DE version, so it is held rather than stated — see honest fit.
Who this is for — and who should skip it
Suited: growers running or building a 600-watt double-ended HPS system who want a professional-grade lamp with a warm 2100 K flowering spectrum and the same spectral output as the 1000-watt lamps, at a 1,150 µmol maximum output.
Not suited / its limits: it is a lamp only — it does not include a ballast, reflector, or fixture, and it will not fit a single-ended socket. HPS is a warm, red-weighted source; if you want a cooler, bluer spectrum for vegetative growth, the metal-halide version of the same lamp is the closer fit. As an HID lamp it runs hot and needs the airflow and clearance an open-fixture reflector expects.
Items held (not sourced, not stated as fact): the rated life in hours for the HPS DE version (the metal-halide sibling is listed at 6,000 hours, but the HPS figure was not on the sources read); initial or rated lumens; operating voltage; the lamp base type (for example K12s); arc length and physical dimensions; whether this specific listing is the “Super HPS” or the “Pro Plus” trim of the line; the warranty term; the PAR/PPFD footprint or coverage maps; and the live retail price (the storefront price field is the source of truth at deploy). Ushio’s own site and several carrying retailers challenge automated fetching, so the specs above are grounded to carrying retailers that reproduce the label and resolve for a visitor; none of the held items were stated as figures we could publish.
Ready to lamp up your DE system? Add to cart, or talk to a grower about matching the lamp to your ballast and reflector.
Sources
- HTG Supply — Ushio HiLUX GRO 600W HPS Pro Plus Double-Ended Lamp product listing (carrying retailer, retrieved 2026-07-07; PRIMARY label-reproducing source for this page): 600W double-ended HPS; maximum output 1,150 µmol; 2100 K color temperature; optimized to run on 600W electronic ballasts; designed and rated for open fixtures; same optimized spectral output as the 1000W lamps; made in Ushio’s European ISO factory; item US5003285. Note: this listing and Ushio’s own site (ushio.com) sit behind a bot/Cloudflare challenge that blocks automated fetch but resolves for a human visitor (M-07): https://www.htgsupply.com/products/ushio-hilux-gro-600w-hps-pro-plus-double-ended-lamp/
- Growers House — Ushio HiLUX GRO 600W MH Double-Ended Lamp 5500K product listing (carrying retailer, HTTP 200, retrieved 2026-07-07; the metal-halide sibling used for the comparison table and to corroborate the line’s double-ended / 600W-electronic-ballast / open-fixture / European-ISO-factory architecture): 600W DE MH; 5500 K; 1,040 µmol; rated life 6,000 hours; open-fixture rated; optimized for 600W electronic ballasts; item US5003284: https://growershouse.com/products/ushio-hilux-gro-600w-mh-double-ended-lamp-5500k
- Ushio America — press release, “New USHIO HiLUX GRO 600W Double-Ended Lamps for Plant Growth” (manufacturer, retrieved 2026-07-07; corroborates the 1,150 µmol maximum output, the 600W electronic-ballast optimization, open-fixture rating, and the same-spectrum-as-1000W claim; the maker site challenges automated fetch, so retailer listings above carry the label for a visitor): https://www.ushio.com/new-ushio-hilux-gro-600w-double-ended-lamps-for-plant-growth/
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