durations: 1/450 sec. (full power);1/900 (1/2); 1/1800 (1/4)
power source: Sunpak CL-2 batteries, 6 ‘AA’ batteries, battery pack (requires dedicated module)
plug: household
size: 9.7″ x 3.9″ x 3.9″
price: $20-$50 (eBay)
pros: powerful, rugged, has a swivel head, affordable, can be powered down to 1/64th power for sequences, handle mount (with bracket)
cons: can’t find them new, sometimes unreliable