PRO GROW LED 500W UFO

Description

Pro Grow LED 500W UFO

The Pro Grow LED 500W UFO is a full-spectrum horticultural light with a round aluminium housing and fanless cooling. Pro Grow identifies the 500W UFO size as a standalone grow-and-bloom fixture, with suitability depending on the footprint of the growing area. This listing is the 500W model, SKU PRO500W.

Pro Grow LED 500W UFO specifications

Choosing between UFO sizes

The UFO range contains several power levels. The manufacturer’s general guidance places the smaller 100W and 200W UFOs in supplementary or under-canopy roles, while the 300W and 500W sizes are standalone grow-and-bloom options. They should not be treated as the same fixture with an interchangeable coverage area.

For the Pro Grow LED 500W UFO, consider the shape of the canopy as well as its area. A round fixture has a different physical layout from a wide multi-bar light. Check where it will hang and how you will reach the plants for watering, inspection and routine maintenance.

Quiet, fanless cooling

The housing dissipates heat without a built-in cooling fan. That removes a source of fan noise from the fixture itself. Passive cooling still requires air movement around the light; it does not mean the unit produces no heat. Keep the cooling surfaces clear and maintain suitable ventilation in the growing space.

Estimating daily electricity use

The 500W input rating equals 0.5 kilowatts. At rated input, the calculated energy use for one fixture is:

Multiply the relevant daily figure by the number of fixtures and your electricity tariff to estimate lighting cost. These examples use rated power rather than a meter reading and exclude fans, irrigation and other equipment. Select the lighting schedule for the plants you are growing.

Checking light at the canopy

The Pro Grow LED 500W UFO’s wattage is an electrical-input rating. It is not a measurement of light received by a leaf. PPFD describes photosynthetic light arriving per square metre per second, so take readings at several canopy positions when assessing an installed fixture.

Pro Grow provides a PPFD user guide and daily light integral calculator. Use guidance for the exact fixture version and the intended growth stage. A change in hanging height or daily operating hours changes the lighting arrangement, so reassess it as the plants develop rather than choosing one position from wattage alone.

Understanding daily light exposure

Daily light integral combines canopy intensity with the number of light hours. For example, a constant measured PPFD of 400 µmol/m²/s over 16 hours gives 23.04 mol/m²/day: 400 × 16 × 0.0036. This is an example calculation, not a measured output or recommended target for the Pro Grow LED 500W UFO.

The calculation needs a canopy reading. Entering the 500W power rating instead of measured PPFD would mix two different quantities. Choose the target for the crop and growing stage, then use measurements and the appropriate fixture guidance to assess the setup.

Installation and model checks

Use secure suspension hardware and the instructions supplied with the light. Plan the lead route before hanging the fixture, keep connections clear of irrigation and avoid tension on the cable. Disconnect power before cleaning or changing the suspension.

If you are matching an existing light, compare the model label and controls. Confirm dimmer, controller and lead compatibility for the version supplied before ordering accessories. A similar housing or plug does not establish that a component from another UFO size will work.

Browse our LED grow lights, contact Hunter Hydro or consult the official Pro Grow lighting guidance when comparing the Pro Grow LED 500W UFO.