Sodium Vapur Lamp

Metal box wiht piano type on/off switch. Out put is through a 3 socket. The trnsformer is auto leak type and gives starting voltage of 440V which reduces itself when the lamp glows.Available : 35 / 55 wallt.

Wooden box with slits on three sides to perform 3 experiments at a time, each slit has two riders to adjust the lenght of slit or close it when no experiment is being performed.Regular quality made of ordinary wood.Deluxe quality made of superior wood and has different sized slits for different experiments. The height of the box can also be adjusted to suit the requirements of the experiment

With a rated output of 80 watt, this source provides sufficient intensity of white light for almost any experiment

To determine absorption spectrum of lodine vapour

Same as wooden box for sodium vapor lamp but slightly smaller

Supplier: Metal halide lamps, sodium lamps, fishing lamps, underwater fishing lamps, ceramic halide lamps
Buyer: Glass

Fsm-60LE glass surface stress tester Product name: fsm-60LE glass surface stress tester Supply ability: 100 Specifications fsm-60LE Price term: fob Port of loading: shanghai Minimum order 1 Unit price: negotiable Fsm-60LE accurate measurement of chemical and heat-resistant glass surface stress. Birefringence in the measurement principle is very important. Sodium lamp as light source, measurement pattern is very clear. The chemical products suitable for measuring the stress and the surface of tempered glass containers depth. Original packing.

To determine velocity of ultrasonic waves in a liquid, complete apparatus consists of high frequency R.F. Oscillator 3-8 MHz, Crystal with tank, long tube Spectrometer with 7 "protracted circle, sodium lamp with wooden box and transformer