1. Optical bench

Bench length: 500 mm
Scale: Yes with LC 0.1 cm
Sliders & holders: 3
Material: Cast iron heavy base  with leveling screw, hardened  aluminium rail

2. Photo sensitive semi conductors

Photo transistor, LDR, Photo diode, opto-coupler and solar cell

3. White light source

LED lamp
Output: 2 W
Rated Input: 220 V/50 Hz  or 110 V/60 Hz

4. Semiconductor diode Laser

Wavelength: 625 nm (Red)
Output power: 3 mW
Mount: Height adjustable
Power supply output: Suitable for 3 mW & 5 mW semi conductor Lasers

5. Opto-electronics characteristics kit

DC variable regulated power  supply with coarse and fine  knobs 0-12 V
Continuos variable load resistor
Internally connected digital volt and current meters
Rated Input: 220 V/50 Hz  or 110 V/60 Hz
Mains cord: 3 pin