What is an LED epi-illuminator used for?

An LED epi-illuminator provides reflected light from above the sample and is commonly used with stereo microscopes for observing opaque objects, parts, surfaces and samples.

How do I choose between a ring light and a twin-arm light?

A ring light is useful for even illumination around the objective, while a twin-arm light is useful when the incident angle needs to be adjusted to emphasize surface texture, edges, shadows or uneven shapes.

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LED Epi-Illuminator for Microscope

LED ring lights and twin-arm illuminators for reflected-light stereo microscope observation

LED epi-illuminators provide reflected light from above the specimen. They are commonly used for stereo microscope inspection of opaque objects, parts, surfaces and samples.

This lineup includes LED ring lights and LED twin-arm illuminators. Select the lighting type according to sample shape, reflectivity, working distance and the contrast required for observation.

LED Ring Light Reflected Light Twin-Arm Light Stereo Microscope

LED Ring Light

Simple-5

LED Ring Light
Budget-friendly LED ring light with dimmer control. A practical choice for general stereo microscope observation and inspection work.

WE-PLUS

LED Ring Light
High-brightness dual-row LED ring light with detachable vertical illuminator unit. Over 50,000 lux with PWM dimming 0–100%.

HDR-LP

LED Ring Light
High-intensity LED ring light designed for stable, flicker-free illumination using a direct-current lighting system.

LED Fiber Twin-Arm Light

HDA-TW3

LED Twin-Arm Light
High-intensity 10 W-class LED twin-arm illuminator with a compact and robust body for flexible reflected-light observation.

SDA-W4

LED Twin-Arm Light
Compact LED twin-arm spotlight with a small power unit. It requires minimal setup space and allows flexible lighting-angle control.

Choose Epi Lighting by Observation Style

LED ring lights provide even reflected illumination around the microscope objective and are useful for general inspection.
High-intensity ring lights are useful when brighter and more stable illumination is required for observation or imaging.

Twin-arm lights allow the incident angle to be adjusted to emphasize surface texture, edges and shadows.
Flexible-arm illumination can be useful for uneven samples or objects where directional contrast is important.
The best option depends on sample shape, surface reflectivity, working distance and the required inspection contrast.

Selection note: For flat and general observation, an LED ring light provides even reflected illumination. For surface texture, uneven samples or shadow control, a twin-arm illuminator can be more effective because the incident angle can be adjusted.