Replacement LED – Loading Dock Light Bulb

P/N: ALC-1156-3UHUP-R

P/N: ALC-1156-3UHUP-G (Out of stock)

Direct Universal Replacement: Please refer to ALC-1156-3UHUP-12-24VDC-1156B(N). It fits both older and newer hinged light box designs.

Compatibility Note: Alert Lighting Company manufactures part number ALC-1156-3UHUP-12-24VDC-1156B(N) as the universal replacement for ALC-1156-3UHUP-R and ALC-1156-3UHUP-G. The current design is slightly more compact to fit smaller hinged light boxes and keeps the same brightness and performance. The first-generation bayonet-style version is available while supplies last.

Want a Deal?

Call 262-895-6349 or sales@alertlightingco.com. Use your UPS account for shipping or ask about bulk order discounts.

Benefits

• Built with Cree LED diodes for bright, reliable light
• Replacement LED bulb with socket and wiring for easy install
• Maintenance-free design
• Long service life: 10–15 years (5-year warranty)
• Internal circuits help protect against electrical surges
• Works on 12–24 VDC systems
• Energy efficient for safer docks and lower costs

Compatibility

• Universal replacement ALC-1156-3UHUP-12-24VDC-1156B(N) fits older and newer ALC hinged light boxes
• If your light uses a bayonet-style silver base, it plugs in directly with no wiring changes
• ALC-1156-3UHUP-R: Red only (limited stock)
• ALC-1156-3UHUP-G: Out of stock

Why Upgrade to LED

• Lower energy use and fewer replacements
• No mercury; recyclable materials
• Directional light improves visibility and reduces glare
• No UV output; safer for workers and materials

Summary

• Current version: Red only (limited)
• Green version: Out of stock
• Universal replacement: ALC-1156-3UHUP-12-24VDC-1156B(N) — fits all ALC dock light boxes