H602 Dimensions :28cm x 5.4cm x 5.4cm
H603 Dimensions :24cm x 5.4cm x 5.4cm
H604 Dimensions :20cm x 3.9cm x 3.9cm
H605 Dimensions :17cm x 3.9cm x 3.9cm
H606 Dimensions :14cm x 3.5cm x 3.5cm

1. No need batteries
2. Ultra bright LED with long life
3. Waterproof and floats
4. Great for use in automobiles, boats. campers,etc
5. 15-30 seconds of shaking produces lighting time as below;