Lucid LUD700A – Constant‑Current 700 mA LED Driver for Industrial Panels and Machine Vision Lighting

The Lucid LUD700A is a compact constant‑current LED driver set at 700 mA, aimed at stable, low‑ripple power for stack lights, pilot indicators, and machine‑vision ring/bar lights inside control cabinets. One thing I appreciate is how it keeps illumination consistent when line voltage drifts—images don’t bloom, and beacons stay uniform. In many cases, it drops right onto a DIN rail, which makes retrofits painless and wiring neat.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: typically 1 week if in stock; no more than 1 month at the latest
• Payment terms: 50% advance payment; full payment prior to delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• 700 mA constant‑current drive – Helps keep LEDs at a stable brightness for clear status indication and steady machine‑vision illumination.
• Universal AC input (100–240 VAC, 50/60 Hz) – Works in most panels globally without extra transformers.
• Wide compliance voltage (up to 48 VDC typical) – Supports short and medium LED strings used in towers, bars, and rings.
• Dimming control (0–10 V / PWM, model dependent) – Easy brightness tuning from the PLC or a dimmer; useful for camera exposure matching.
• Protection set – Short‑circuit, over‑current, over‑voltage, and thermal protection to safeguard both the driver and the LED load.
• Low ripple output – Reduces flicker and banding in camera images; from my experience, that saves time on vision tuning.
• DIN‑rail or panel mounting – Clean installation inside enclosures; screw terminals make servicing straightforward.
• Compact footprint – Leaves room in the cabinet for breakers and contactors; typically no forced cooling required.

Technical Specifications

Related or Supporting Products

• Mean Well HLG‑40H‑C700A – 700 mA constant‑current driver with IP65 housing; better for on‑machine or outdoor use.
• Tridonic LC 35/700 – Compact 700 mA driver; strong for architectural and signage lighting with reliable flicker performance.
• Philips Xitanium 36W 0.7A – Industrial‑grade 700 mA driver; good dimming behavior and wide mains tolerance.
• 0–10 V signal isolator or shielded control cable – Helps avoid noise on the dimming line in cabinets with VFDs.

Quick field note: a packaging client swapped from a mixed 350/700 mA setup to the LUD700A across all blue stack lights and saw fewer false rejects in the vision station—seems to be the steadier output under motor load transients.

Installation & Maintenance

• Enclosure & mounting – Install on a TH35 DIN rail or flat panel in a ventilated cabinet. Keep 20–30 mm clearance above/below for passive cooling.
• Wiring – Use appropriately rated copper conductors; segregate AC input and low‑level dimming lines. Tighten terminals to the torque printed on the unit (or 0.4–0.6 Nm typically).
• Protection – Feed from a dedicated MCB with upstream surge protection if VFDs or large contactors share the bus.
• Dimming – For 0–10 V: maintain common reference and shield the cable if the run exceeds a few meters. For PWM: 100–1,000 Hz usually gives stable response.
• Thermal – If ambient exceeds 40–45 °C, ensure airflow or derate the LED load; avoid mounting near braking resistors or inverters.
• Routine checks – Quarterly tighten terminals, blow out dust, and verify LED current with a clamp meter. Firmware updates are not applicable on analog versions.

Quality & Certifications

• Compliance: CE and RoHS (typical for this series). Some batches include UL/UKCA marks—best to confirm on the label if your project requires it.
• Manufacturing: built to industrial control panel expectations; lot‑traceable supply in most cases.
• Warranty: 365 days from shipment; units are inspected before dispatch.