Capacitor, Sodium, 1000W US (wet)

US-Spec Replacement Capacitor for Hydrofarm 1000W HPS and Convertible Ballasts

Hydrofarm 1000W high pressure sodium and convertible magnetic ballasts manufactured for the US market use a capacitor rated to US electrical specifications. This is the US wet-type replacement capacitor for those ballasts — use it when the ballast documentation specifies the US-specification capacitor.

Capacitors in magnetic HID ballasts store and release electrical charge to support lamp ignition and stable operation. As capacitors age, their charge-holding capacity decreases, leading to startup failures, flickering, and ballast reliability issues. Replacing the capacitor with the correct specification restores ballast performance.

Key Features & Benefits

• US electrical specification — rated to US electrical standards — the correct replacement for Hydrofarm 1000W HPS and convertible ballasts built for the US market.
• Wet type construction — wet electrolytic capacitor construction suitable for HPS magnetic ballast operating conditions.
• 1000W HPS and convertible ballast compatible — specified for Hydrofarm 1000W high pressure sodium and convertible magnetic ballasts meeting US electrical standards.
• Restores lamp startup reliability — replacing a degraded or failed capacitor restores reliable lamp ignition and consistent ballast output.

Who Should Use the Hydrofarm 1000W HPS US-Spec Replacement Capacitor

Growers with US-market Hydrofarm 1000W high pressure sodium or convertible magnetic ballasts who need to replace a degraded capacitor with the correct US-specification replacement.

Selecting Between BACPSD1TH and BACPSD1THU

Hydrofarm offers two 1000W HPS capacitor variants: BACPSD1TH and BACPSD1THU (the US version). If you are unsure which applies to your ballast, check the original capacitor on the ballast for its MFD and VAC rating, and match those values to the replacement specification. Contact Hydrofarm customer support with your ballast model number if documentation is not available.

Frequently Asked Questions

How do I know if my ballast uses the US-spec capacitor (BACPSD1THU) or the standard version (BACPSD1TH)?

Check your ballast documentation or the original capacitor label for the MFD and VAC rating. US-market Hydrofarm ballasts use the US-spec capacitor. If in doubt, contact Hydrofarm support with your ballast model number.

What symptoms indicate a capacitor failure in an HPS ballast?

Lamp startup failure, extended warm-up times, flickering, and elevated ballast heat are all common indicators. A capacitance meter measuring significantly below the specified MFD value confirms the capacitor has degraded.

Is capacitor replacement a DIY repair?

Capacitors retain charge and present a shock hazard even after the ballast is unplugged. Always fully discharge the capacitor and allow several minutes after disconnecting power before handling internal ballast components. If you are not comfortable with electrical work, have the repair done by a qualified technician.

Can I use either the BACPSD1TH or BACPSD1THU in any Hydrofarm 1000W HPS ballast?

Only use the capacitor that matches the specification for your specific ballast model. Using a capacitor with an incorrect MFD or VAC rating can cause lamp startup issues or ballast damage.