Product 1-1
With Auto Shut Off,  and battery-backup, tilt display and large keys. 

Size:7.5 x 5.5 x .5 Inches. Battery Backup for low light conditions. Auto Shut-off to save battery. Till LCD Display for easy viewing. 8 Digits output for precise calculations. Lightweight and thin.  does Memory, Percentages and Sq. roots. Also features large keys for ease of inputting. 

Product 1-2
Has many uses, Bright Output, uses button batteries, Low Drain, Strong Clips.

Small hands-free flashlight, clips on to hats, clipboards, table edges, books, clothing. Five white LEDs provide bright light with low current drain. Operates on three button cells, LR44, AG13, CAT# BAT-7. Note:Working batteries are included, but they may show signs of leakage. 

Product 1-3

Excellent Nitelite, recharges batteries during the day. lites at night.

Here's a great start for a solar cell project. These assemblies for sun-powered garden lights consist of two glas photovoltaic cells mounted on a plastic bracket with a charging circuit, two rechargeable AA cells, and three red LEDs. Between the solar cells is a photoresistor to sense light and dark conditions. In daylight the solar cells charge the battery. When it gets dark, the LEDs light. These are working units but the batteries are old and may not take a charge. Solar cell surface area is 3.78" x 1.98". Cells provide 2.6 Vdc @ 25 mA in bright sunlight.

Product 1-4

Use with Solar Cell Charging Unit ON THE LEFT. Great device to focus the LED Light featured above.

Size:Fraen FHS Lens. 2" dia x 1.15" high plastic lens assembly for use with three Luxeon ultra-bright LEDs.