Overview

Five compact COB LED chips built for precise, hands-on DIY lighting and signaling projects. Each 25x7 mm module features an Epistar COB LED on a durable aluminum-alloy heat-dissipation plate, delivering reliable illumination from a small footprint. With 1W per chip and selectable color temperatures, these units are ideal for creating focused work lights, indicators, or compact lighting solutions in tight spaces.

Key specifications

• Chips: Epistar
• Size: 25 mm × 7 mm
• Lighting area: 15 mm × 6 mm
• Material: Aluminum-alloy plate + COB LED
• Power: 1 W
• Input voltage: DC 3–4 V
• Max current: 500 mA
• Luminous flux: 110LM/W
• Light color: Cold White (6000–6500 K), Warm White (2800–3000 K)

What's included

• 5 pcs 25x7mm COB LED Chip

Usage notes

• Connect to a 3 V or 3.7 V power supply (batteries).
• There is no wire on the LED chip—wires must be soldered to the pads for your build.

Ideal applications

Designed for work signal lamps and general DIY lighting projects, these COB LED chips offer flexible, compact illumination with two color temperatures to match your environment—warm white for cozy, inviting light or cold white for bright, task-focused visibility.