How to Replace a Ballast on a Studio LED Light
By Fotodiox, Inc. USA | Published: 2026-10-21
Category: How-to Guides
Learn how to safely replace a faulty ballast in your Fotodiox Pro studio LED light. Step-by-step guide covers diagnosis, disassembly, and installation for common models like the LED100WB and C1080.
Quick Answer
Replace a faulty ballast in your studio LED light by first unplugging the unit, opening the housing, disconnecting the old ballast, and installing the correct OEM replacement part. Always match the ballast to your specific light model to avoid damage.
When You Need to Replace the Ballast
A failing ballast usually causes flickering, uneven brightness, or a light that won't turn on at all. If your Fotodiox Pro LED100WB or a similar studio LED light shows these symptoms, the ballast is a likely culprit. Replacing it yourself is often faster and cheaper than sending the unit in for service.
Ballast compatibility matters. The LED100WB uses a specific OEM ballast, while other models like the C1080, V2000, or VR-2500 share a different power supply unit. Always verify your light's model number before ordering a replacement.
Step-by-Step Ballast Replacement
- 1. Unplug and Disconnect All Power: Unplug the light from AC power and remove any batteries if applicable. Wait at least 5 minutes for internal capacitors to discharge. Never work on a powered light. Even if the switch is off, capacitors can hold a dangerous charge.
- 2. Open the Light Housing: Remove the screws securing the rear panel or ballast compartment. Keep screws organized. Note any cable routing or clips before disconnecting wires. Take a photo of the wiring before disconnecting anything. This prevents confusion during reinstallation.
- 3. Disconnect the Old Ballast: Unplug or unscrew the AC input cable and the cable running to the LED panel. Remove the ballast from its mounting bracket or tray. Common mistake: pulling on wires instead of the connector can damage the pins. Always grip the connector body.
- 4. Install the New Ballast: Mount the replacement ballast in the same orientation. Reconnect the AC input cable and the LED panel cable, matching the original wiring layout. Double-check that all connections are snug. Loose connections can cause arcing or intermittent operation.
- 5. Test Before Closing: Plug in the light and turn it on briefly to confirm the LED panel lights up evenly and without flicker. Adjust brightness if your model supports dimming. If the light doesn't turn on, recheck wiring polarity and connector seating. Do not force the housing closed until the light works.
- 6. Reassemble the Housing: Once testing is successful, unplug the light and replace the rear panel or compartment cover. Tighten screws evenly but do not overtighten. Overtightening can strip plastic threads or crack the housing. Snug is sufficient.
Replacement Ballast Options
- LED100WB OEM Replacement Parts - Replacement Parts for Fotodiox Pro LED100WB Studio LED Light (for SKUs starting with LED-100WB*): OEM replacement parts for Fotodiox Pro LED100WB Studio LED Light, for SKUs starting with LED-100WB*. Includes ballast, AC-to-ballast cable, and ballast-to-light cable options. If you own an LED100WB, this is the exact ballast and cable set designed for your light, ensuring a drop-in fit without modifications.
LED100WB OEM Replacement Parts - Replacement Parts for Fotodiox Pro LED100WB Studio LED Light (for SKUs starting with LED-100WB*) - Replacement Ballast for C1080/1180/1500, Led 1380, V2000, VR-2500, W30, Led 1580, HS-150, RGB150, C818ASV: Replacement ballast compatible with C1080/1180/1500, Led 1380, V2000, VR-2500, W30, Led 1580, HS-150, RGB150, and C818ASV lights. If you own a larger or bicolor panel like the FlapJack or FACTOR series, this single ballast covers multiple popular models, simplifying inventory for rental houses or multi-light kits.
Replacement Ballast for C1080/1180/1500, Led 1380, V2000, VR-2500, W30, Led 1580, HS-150, RGB150, C818ASV
